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Kalmanfilter

Kalman Trend Filter [JOAT]Kalman Trend Filter Introduction Kalman Trend Filter is an open-source trend detection indicator that applies a two-state Kalman filter to price, tracking both the filtered price level and its velocity simultaneously. Unlike exponential moving averages — which apply a fixed exponential decay to past data — the Kalman filter dynamically adjusts its responsiveness based on the ratio of process noise to measurement noise. When price is moving consistently in one direction, the filter trusts new measurements more heavily. When price is noisy, it trusts its own model more heavily. The practical result is a trend line that responds faster than an equivalent EMA during genuine trends while remaining smoother during chop. The velocity state is the direct indicator of trend direction and strength — it is what drives signal generation and candle coloring. Core Concepts 1. Two-State Kalman Filter The filter tracks two quantities: price (position state) and the rate at which price is changing (velocity state). The prediction step projects both states forward using simple kinematic equations. The correction step updates them based on how much the current close deviates from prediction: // Prediction float xPred = xEst + vEst float pPred = pEst + qNoise // Kalman gain float kGain = pPred / (pPred + rNoise) // Correction float xEst = xPred + kGain * (close - xPred) float vEst = vEst + kGain * (close - xPred) The process noise (qNoise) and measurement noise (rNoise) parameters control how much the filter trusts its own momentum model versus new price data. 2. Velocity as Trend Proxy The velocity state is the most analytically useful output. Positive velocity means the filtered price is accelerating upward; negative means downward. The magnitude of velocity indicates trend strength. Velocity crossing zero is a higher-quality trend reversal signal than a moving average crossover because it reflects the momentum of the filtered series, not the level. 3. Gradient Candle Coloring Candles are painted using a two-sided gradient driven by the velocity state. Strongly positive velocity produces bright cyan candles; strongly negative produces bright magenta. Near-zero velocity transitions to neutral. The gradient intensity scales with velocity magnitude rather than applying a binary color switch. 4. Velocity Oscillator The velocity state is plotted as a separate sub-indicator below the main chart, providing a visual oscillator that crosses zero at trend reversals. Unlike momentum oscillators derived from price differences, this oscillator represents the Kalman filter's internal estimate of trend rate — it is inherently smooth without additional EMA smoothing. Features Two-state Kalman filter: Tracks price level and velocity simultaneously Configurable noise parameters: Process and measurement noise control filter responsiveness Filtered price line overlay: Smooth trend line drawn on the price chart Velocity oscillator: Kalman velocity state as a zero-line oscillator Velocity zero-cross signals: Bull and bear signals when velocity crosses zero Gradient candle coloring: Cyan for upward velocity, magenta for downward, scaled by magnitude Dashboard: Current filtered price, velocity, trend state, and noise parameters Alerts: Velocity zero-cross and extreme velocity alerts Input Parameters Kalman Engine: Process Noise (Q): How much the filter trusts its own velocity model (default: 0.01) Measurement Noise (R): How much the filter trusts new price measurements (default: 1.0) Initial Velocity: Starting velocity state (default: 0.0) Display: Show Filter Line toggle Show Velocity Oscillator toggle Show Candle Color toggle How to Use This Indicator Step 1: Read Velocity Direction Positive velocity (oscillator above zero, cyan candles) indicates the filter is trending upward. Negative velocity (below zero, magenta candles) indicates downward trend. The magnitude tells you how strong. Step 2: Use Velocity Zero-Cross as Trend Change Signal When velocity crosses from negative to positive, the filter's internal momentum model has flipped bullish. This is more reliable than a price crossover because it reflects the rate of change of the filtered series. Step 3: Tune Noise Parameters to Timeframe On faster timeframes, increase Q slightly (0.02–0.05) to make the filter more responsive. On weekly charts, reduce Q (0.001–0.005) for a smoother, slower-adjusting filter. Step 4: Combine with Regime Context The Kalman filter performs best in trending regimes. Combine with Fractal Dimension Oscillator: when FDO shows a trending regime, Kalman velocity direction provides the trend bias. Indicator Limitations The Kalman filter assumes a linear motion model; non-linear price dynamics (sudden gaps, news events) produce temporary distortion in the filter state Optimal Q and R values are instrument and timeframe dependent; no universal setting works everywhere Velocity zero-crosses during low-volatility consolidation can produce frequent false signals Originality Statement The two-state Kalman filter implementation combined with a velocity-driven gradient candle coloring system, a dedicated velocity oscillator, and dual-input noise parameter configuration in a single publication is the original contribution here. Most published Kalman filter scripts on TradingView implement a single-state position filter with no velocity tracking and no gradient visualization. Disclaimer This indicator is provided for educational and informational purposes only. It is not financial advice. Kalman filter outputs are mathematical estimates based on prior observations and do not predict future price. Trading involves substantial risk of loss. -Made with passion by jackofalltrades
Pine Script® インジケーター
officialjackofalltradesの投稿
Gatev Relative Value Arbiter [JOAT]Gatev Relative Value Arbiter Introduction Gatev Relative Value Arbiter studies relative value between the chart symbol and a selected peer using beta spread, z-score, stationarity, Kalman residuals, and OU speed. This open-source indicator is designed as a context tool, not a standalone trading system. It focuses on explaining the current market state with restrained visuals and confirmed-bar logic where signals are used. Core Concepts 1. Rolling Beta Spread The chart log price is modeled against the peer log price with rolling beta and alpha. 2. Spread Z-Score Residual spread is normalized to identify cheap and rich dislocations. 3. Kalman Residual A recursive residual estimate adapts to changing pair behavior. 4. Stationarity and OU Speed Correlation, beta drift, skew, kurtosis, and OU-style speed grade pair quality. spread = logChart - (alpha + beta * logPeer) Features Peer relative-value model Rolling beta and spread z-score Kalman residual z-score Stationarity and cointegration energy proxies Cheap, rich, prime, broken, and fair-value states Input Parameters Peer symbol Rolling beta and z-score lengths Entry and exit z thresholds Minimum correlation Cooldown and display toggles How to Use This Script Choose a logically related peer. Cheap and rich states are most meaningful when pair validity and stationarity remain acceptable. Limitations The script uses historical OHLCV data and cannot know future prices. Signals and states can be late during fast reversals because confirmed-bar logic is used to reduce repainting. Model outputs should be interpreted with market context, risk controls, and independent analysis. No visual state should be treated as a certain trade outcome. Originality Statement GRA is original in combining rolling beta arbitrage logic, Kalman residuals, OU speed, and stationarity grading. Disclaimer This indicator is provided for educational and informational purposes only. It is not financial advice, investment advice, or a recommendation to buy or sell any financial instrument. All calculations are derived from historical market data and may produce inaccurate readings in some market conditions. No indicator can predict future market behavior. Use proper risk management and independent judgment. -Made with passion by jackofalltrades
Pine Script® インジケーター
officialjackofalltradesの投稿
Syndicate Confluence [JOAT]Syndicate Confluence Introduction Syndicate Confluence is an open-source overlay indicator that unifies three independent analytical engines into a single spatially organized visual system. Engine 1 is an adaptive Kalman filter with a Supertrend ratchet trail — it classifies the macro directional regime and generates a triple-glow neon trail on the chart. Engine 2 is an institutional order block zone mapper — it identifies swing-pivot order blocks, classifies them by trading session, and renders them as persistent box-based zones with session-colored borders and labeled displacement ratios. Engine 3 is an HMA pressure trail paired with a custom volume-weighted MFI — it classifies each bar into bull pressure, bear pressure, or neutral states. The three-layer visual architecture ties all three engines together: an outer ATR cloud communicates the macro volatility context of the Kalman filter; a corridor fill between the Kalman Supertrend line and the HMA trail communicates whether both engines are aligned in the same direction; and a core gradient fill between the HMA trail and the candle mid-body communicates the intensity of the current pressure state. When all three layers are saturated in the same color, the confluence is at its strongest. When they are fragmented, the market is transitioning. The highest-confidence signal — the starred HC Long or HC Short label — fires only when a trail flip, Kalman direction, and order block proximity all coincide simultaneously. This triple-engine intersection is the indicator's primary setup, and the remaining visual layers exist to help traders evaluate whether conditions are building toward or away from that state. Core Concepts 1. Adaptive Kalman Regime Engine The Kalman filter maintains a running estimate and error variance. Each bar, the gain is computed as err / (err + noise), where noise = alpha * period. The estimate is updated toward close proportional to the gain, and the error variance self-adjusts — expanding when prediction is poor (high responsiveness), contracting when the filter tracks well (high smoothness). A Supertrend ratchet is applied to the Kalman value: ATR-scaled upper and lower bands drift with a direction-persistence rule — the upper band can only fall, the lower band can only rise. Direction flips when the Kalman value closes through the active band. Applying the ratchet to a Kalman-smoothed price removes the micro-fluctuations that cause excessive flips in price-based systems. 2. Session-Colored Order Block Zones When a swing pivot low is confirmed, the indicator searches back for the last bearish candle before the pivot. If the subsequent displacement exceeds ATR * dispMult, that candle becomes a bull order block. The zone is drawn at the candle's midpoint with ATR-scaled height. Zone border color is determined by the birth session: London = blue (#60a5fa), NY = pink (#f472b6), Asia = green (#34d399). The label shows type, session, displacement ratio (e.g., "▲ BULL LON 1.8x 5030.41"), and updates its x-position every bar to track the right edge of the chart. Border thickness scales with displacement ratio — zones from 2x+ displacement moves get thicker borders. 3. HMA Pressure Trail and Volume-Weighted MFI An HMA ratchet trail determines directional commitment. The custom volume-weighted MFI sums volume * hlc3 on rising bars (positive flow) and volume * hlc3 on falling bars (negative flow), normalizes with the RSI formula, and smooths with an HMA. Bull pressure is active when the trail is bullish AND the smoothed MFI exceeds the bull threshold. Bear pressure when trail is bearish AND MFI below the bear threshold. The pressure strength percentage tracks the rolling 50-bar proportion of bars spent in an active pressure state. 4. Three-Layer Visual Architecture Outer ATR Cloud: k_val ± cloudMult * ATR filled with directional color at near-full transparency — communicates macro volatility context and Kalman regime at a glance Corridor Fill: The zone between the Kalman Supertrend line and the HMA trail — fills cyan when both agree bullish, rose when both agree bearish, neutral gray when diverging. When the corridor narrows and both trails converge in the same direction, confluence is building Core Pressure Gradient: Between the HMA trail and the candle mid-body — transparent at the HMA, saturated at the body, colored by pressure state. Deep color indicates active, volume-backed directional pressure 5. Signal Hierarchy ★ HC Long / ★ HC Short: Trail flip + Kalman direction + OB proximity — the highest-confidence setup. Starred label with colored background Trail flip arrows: Triangle up/down when trail flips in Kalman direction with MFI above/below 50 — standard entry signal MFI cross-50 triangles: Small triangles on the Kalman trail when MFI crosses the 50 level in the trail direction — momentum regime shift marker TP labels: Fire when MFI reaches overbought or oversold extremes in the trail direction K▲ / K▼ labels: Mark the exact bar where the Kalman Supertrend direction flips Squeeze diamond / circle: Diamond on squeeze start, circle on squeeze release Volume impulse labels: "1.8x vol" label on high-volume directional bars above the configured multiple Proximity diamonds: Fire on the first bar where price enters the OB proximity buffer Features Adaptive Kalman Filter: Self-calibrating gain updates noise estimate each bar — faster during impulses, smoother during consolidation Supertrend Ratchet on Kalman: Direction-persistent bands applied to the filtered price — stable, low-whipsaw regime signal Triple-Layer Kalman Glow: Widths 9/5/2 with decreasing transparency create a neon halo effect on the Supertrend trail Outer ATR Volatility Cloud: Wide envelope around the Kalman value, gradient-filled by regime direction Corridor Fill (Kalman ST ↔ HMA Trail): The alignment region between both trails — fills directionally when confluent, neutral when diverging Core Pressure Gradient Fill: HMA-to-mid-body gradient colored by active pressure state Session-Colored OB Zone Borders: London blue / NY pink / Asia green borders encode session context directly in the zone visual OB Zone Labels: Type, session, displacement ratio, and price level — updated live at right chart edge ★ HC Long / HC Short Labels: Triple-confluence signal fired when trail flip, Kalman direction, and OB proximity align Trail Flip Arrows: Triangle up/down entry signals when trail flips in Kalman direction with MFI midline confirmation MFI Cross-50 Markers: Small triangles on the trail at momentum regime shifts TP Overbought/Oversold Labels: Fire at MFI extremes in trail direction K▲/K▼ Kalman Flip Labels: Pinpoint the exact bar of each Kalman regime change Squeeze Detection: Diamond on Kalman band compression start, circle on release K-Velocity Dots: Brightness-scaled dots on the trail communicating momentum acceleration Volume Impulse Labels: Ratio labels on high-volume directional bars Proximity Diamonds: Alert when price first enters the OB proximity buffer Regime Transition Circles: Fire at every Kalman regime change on the trail line Gradient Bar Coloring: Saturates with MFI intensity when Kalman and trail agree, fades to neutral otherwise 13-Row Dashboard: K-Regime, Trail, Pressure state, Zone proximity, Confluence, MFI, P-Strength %, Squeeze state, Band Width, Trend Bars, K-Velocity %, ATR 9 Alertconditions: Long/short signals, HC signals, TP signals, squeeze release, Kalman flips Input Parameters Regime Engine: Kalman Alpha: Base noise smoothing — lower = smoother, more lag (default 0.02) Kalman Beta: Error variance recovery rate (default 0.10) Kalman Period: Gain magnitude scaler (default 50) ST Factor: ATR multiplier for Supertrend bands on Kalman (default 1.5) ST ATR Length: ATR lookback for band calculation (default 10) Cloud ATR Width: Outer cloud multiplier (default 2.5) Squeeze Threshold %: Band width below this % of SMA triggers squeeze (default 80%) Zone Engine: Swing Length: Pivot confirmation lookback (default 5) OB Lookback: Bars searched for qualifying order block candle (default 20) Displacement ATR Mult: Minimum move to validate an OB (default 0.8) Zone ATR Width: Zone height as ATR fraction (default 0.75) Max Active OBs / Side: Oldest zones trimmed beyond this limit (default 8) Proximity Buffer (ATR): Approach detection radius (default 1.5) Momentum Engine: MFI Length: Volume-weighted money flow lookback (default 14) MFI Smooth: HMA smoothing on raw MFI (default 5) Trail HMA Length: HMA period for pressure trail (default 14) Trail ATR Mult: Trail band width (default 1.5) MFI Bull/Bear Thresholds: Pressure activation levels (default 58/42) Signals: TP Overbought / Oversold: MFI extremes for TP labels (default 78/22) Impulse Vol Multiplier: Volume multiple for impulse labels (default 1.5) How to Use This Indicator HC Signal Setup: The ★ HC Long / HC Short label is the primary setup. It fires when the trail flips in the Kalman direction while price is within proximity of an active order block. Enter on the labeled bar. Trail your stop at the HMA trail line. Look for the TP label or pressure state deactivation as an exit reference. Corridor Fill as Trend Quality Gauge: When the corridor between the Kalman trail and HMA trail is narrow and saturated with color, both trend systems are locked in the same direction — this is the highest-confidence trending condition. When the corridor is wide or neutral gray, the two systems are diverging — reduce size or wait for re-alignment. Reading the Signal Hierarchy: Start with the Kalman regime (K▲/K▼ label and trail color) for macro direction. Add the trail flip arrow for timing. Confirm with MFI cross-50 triangle. Check if an OB zone is nearby for HC bonus. Exit on TP label or when the corridor fill turns neutral. Squeeze Breakout Setup: When the golden diamond squeeze marker fires, the Kalman bands are compressing. Wait for the circle squeeze release marker. If the trail is aligned with the Kalman regime at release, the first trail flip after the release is a high-quality breakout entry. Indicator Limitations Order block detection requires a confirmed swing pivot, which in Pine Script v6 is offset by swingLen bars — zones are created after the fact relative to the actual pivot candle The corridor fill between the Kalman trail and HMA trail can produce wide fills on instruments with large spread between the two systems — this is informational, not a defect, but may visually dominate the chart on some timeframes HC signals require all three conditions simultaneously. On instruments with sparse order block formation, HC signals may be infrequent compared to standard trail flip arrows The volume-weighted MFI requires volume data. On instruments with unreliable volume reporting, the pressure engine may be less meaningful than on equities or futures Squeeze detection uses 80% of the 20-bar SMA as the threshold. On instruments that are persistently low-volatility, this threshold may trigger continuously — adjust the squeeze percentage parameter upward for such instruments Originality Statement This indicator is original in its three-engine confluence architecture, the corridor fill system between the Kalman Supertrend and HMA trail, and the session-colored OB zone integration with the starred HC signal. The publication is justified because: The corridor fill between the Kalman Supertrend trail and the HMA pressure trail creates a novel visual quality gauge — the width and saturation of the corridor communicates alignment strength between macro regime and near-term pressure in a single spatial layer Session-colored OB zone borders encode institutional session context directly into the zone visual without requiring a separate session indicator, making the chart self-contained for context-aware zone evaluation The HC signal requires three independent engine conditions to coincide: Kalman regime direction, trail flip timing, and OB proximity. This triple-gate structure is a more restrictive and higher-quality filter than any two-condition confluence approach The three-layer visual architecture (outer cloud, corridor fill, core pressure gradient) creates a spatially organized picture where the distance between layers communicates regime context, trail alignment, and pressure intensity at different spatial scales simultaneously The K-velocity dot brightness system embeds momentum acceleration directly into the trail visualization without requiring a separate panel — the trail itself communicates direction, state, and rate of change simultaneously Disclaimer This indicator is provided for educational and informational purposes only and does not constitute financial advice or a recommendation to buy or sell any financial instrument. Past performance of any pattern or signal does not guarantee future results. All trading involves substantial risk. Always use proper risk management and conduct your own independent analysis. — Made with passion by officialjackofalltrades
Pine Script® インジケーター
officialjackofalltradesの投稿
Adaptive Pivot Circles▶Overview The Adaptive Pivot Circles is a unique geometric indicator that visualizes dynamic market volatility and potential support/resistance zones. Instead of relying on traditional horizontal lines or linear trends, this script projects historical price and time movements into two-dimensional geometric circles. By applying a Kalman Filter to the distances between historical pivots, the indicator calculates an adaptive, noise-resistant average radius, providing a highly responsive and visually stunning representation of market cycles. ▶Core Concepts & Mechanics 1. Advanced Pivot Detection with ATR Filtering The script identifies significant Pivot Highs (PH) and Pivot Lows (PL) across the chart. To eliminate market noise and prevent minor pullbacks from distorting the geometry, a built-in ATR Filter is applied. A pivot is only considered valid if its height/depth exceeds a specified multiple of the Average True Range (ATR). 2. Adaptive Radius via Kalman Filter Most indicators use Simple Moving Averages (SMA) to calculate historical data, which inherently introduces lag. This indicator utilizes a 1D Kalman Filter to estimate the "true" historical radius—measuring both time (X-axis, bars) and price (Y-axis)—between similar pivots (i.e., PH to PH, and PL to PL). Process Noise (Q): Controls how quickly the filter adapts to new data. Measurement Noise (R): Controls how much the filter smooths out sudden spikes. 3. Geometric Projection (The Rolling Circles) When a new pivot is confirmed, the script projects the anticipated market boundaries. The geometric concept is based on a circle connecting the current pivot to the previous one. If you roll that connecting circle around the current pivot, it creates an outer boundary. To visualize this, the indicator draws two concentric zones around the newly formed pivot: Inner Ring: Radius is 2x the Kalman-averaged historical radius. Outer Ring: Radius is 4x the Kalman-averaged historical radius. ▶Key Features & Settings Kalman Filter Tuning: Fully adjustable Process Noise (Q) and Measurement Noise (R) allow you to fine-tune the algorithm for different timeframes and assets. Visual Aesthetics (Polyline Drawing): Built using Pine Script v5's advanced polyline drawing objects, the indicator features smooth curves, customizable fill transparencies, and a beautiful Glow Effect (layering transparent thick lines under crisp main lines). Performance Optimization: You can adjust the Circle Resolution (number of points) to balance between perfect roundness and script rendering performance. Historical Cleanup: Automatically cleans up old projections to keep your chart uncluttered. Adjust Max History Circles to determine how many recent cycles remain visible. ▶How to Use Dynamic Support & Resistance: The circumferences of the projected circles often act as non-linear support and resistance levels. Watch for price action reactions as the market approaches the Inner or Outer Rings. Volatility Gauge: The size of the circles visually represents the current market volatility and the length of recent price swings. Confluence: Use these geometric projections in conjunction with your existing strategies (e.g., Fibonacci, Volume Profile) to find high-probability reversal zones where price intersects with the circle boundaries. Disclaimer: This script is for educational and visual purposes only. Geometric projections are not guarantees of future price action. Always use proper risk management.
Pine Script® インジケーター
SatohKの投稿
1
Gold Scalper V4.2GOLD SCALPER V4.2 — GOLD (XAUUSD) SCALPING GUIDELINE Kalman Filter + Double Bollinger Bands + 3-Confluence System Version 4.2 PART 1 — WHAT IS THIS INDICATOR? GOLD SCALPER V4.2 is a scalping tool built exclusively for Gold (XAUUSD). It combines three components: COMPONENT | WHAT IT DOES Kalman Filter | Smooths price baseline mathematically. Filters Gold's news spikes without lag. SCALPER Architecture | Creates 3 price zones: Sell / Neutral / Buy. Identifies statistically extreme positions. 3-Confluence System | Requires 3 conditions before firing a signal. Filters signals during band-walking. PART 2 — THE THREE ZONES ON THE CHART The chart is always divided into three labeled zones. Each zone tells you exactly what to do. 🔴 SELL ZONE — Price > BB2 Upper — Overbought DO NOT BUY here. Look for SELL only. Deeper in zone = potential reversal area. ⚪ NEUTRAL ZONE — Inside BB1 bands — Normal range No extreme condition. WAIT. Do not trade here. 🟢 BUY ZONE — Price < BB2 Lower — Oversold DO NOT SELL here. Look for BUY only. Deeper in zone = potential reversal area. VOLUME GRADIENT (Zone fill color): • Vibrant / saturated color → Strong volume conviction → Potential signal • Faded / pale color → Weak volume → WAIT, skip signal PART 3 — ENTRY, TARGETS, AND STOP LOSS Logic: Price moves to one extreme zone → target is the OPPOSITE extreme zone. Bollinger Bands are mean-reverting by math. ── BUY SETUP (Entry from Green BUY ZONE) ───────────────────── • Entry → Close of signal candle (below BB2 Lower) • TP1 (50%) → LTF BB1 Upper (close HALF your position here) • TP2 (50%) → LTF BB2 Upper (close remaining half here) • Stop Loss → LTF BB2 Lower × 0.998 (0.2% buffer below band) ── SELL SETUP (Entry from Red SELL ZONE) ───────────────────── • Entry → Close of signal candle (above BB2 Upper) • TP1 (50%) → LTF BB1 Lower (close HALF your position here) • TP2 (50%) → LTF BB2 Lower (close remaining half here) • Stop Loss → LTF BB2 Upper × 1.002 (0.2% buffer above band) NOTE: All four levels (Entry, TP1, TP2, SL) are drawn automatically on the chart as lines and labels when a signal fires. You do not need to calculate them manually. PART 4 — THE 3-CONFLUENCE SIGNAL SYSTEM A signal (▲ BUY or ▼ SELL) fires ONLY when ALL THREE conditions align at the same time. Missing even one = no signal fires. ── CONDITION 1: Statistical Exhaustion (The Zone) ──────────── • BUY → Price must close BELOW LTF BB2 Lower • SELL → Price must close ABOVE LTF BB2 Upper This confirms price has entered statistically extreme territory. An internal latch is set and stays active until price returns inside the BB1 bands (signal cycle complete). ── CONDITION 2: Momentum Shift (The Slope) ─────────────────── • BUY → LTF BB2 Lower band is RISING (current > previous bar) • SELL → LTF BB2 Upper band is FALLING (current < previous bar) *** THIS IS THE MOST IMPORTANT CONDITION *** Gold often "walks the band" — price stays in the extreme zone for many bars during strong trends. Condition 2 prevents entries during band-walking by waiting for the band itself to reverse. ── CONDITION 3: Macro Trend Filter (HTF) ───────────────────── • BUY → Current price must be ABOVE the HTF Basis line • SELL → Current price must be BELOW the HTF Basis line This ensures you trade WITH the macro trend, not against it. ── SIGNAL RESET LOGIC ──────────────────────────────────────── • After BUY fires → No new BUY until price returns above BB1 Lower (LTF + HTF) • After SELL fires → No new SELL until price returns below BB1 Upper (LTF + HTF) This prevents duplicate signals during a single move. PART 5 — STEP-BY-STEP TRADE EXECUTION ── BEFORE THE SESSION ──────────────────────────────────────── 1. Open XAUUSD chart with the indicator applied. 2. Set the correct HTF Timeframe in Settings. 3. Check the time — avoid trading 15 min before/after major USD news. 4. Confirm you are in an active session: - London Open → 08:00–10:00 GMT - NY Open → 13:00–17:00 GMT ── FINDING THE SETUP ───────────────────────────────────────── 1. Is price above or below the HTF Basis line? - Above HTF Basis → BULLISH macro → BUY setups only today - Below HTF Basis → BEARISH macro → SELL setups only today 2. Wait for price to enter the matching extreme zone: - Bullish day → Wait for price to enter 🟢 BUY ZONE - Bearish day → Wait for price to enter 🔴 SELL ZONE 3. Check the zone fill color: - Vibrant saturated color → Strong volume → Proceed - Faded pale color → Weak volume → Wait more 4. Wait for the signal triangle: - ▲ green triangle → BUY signal confirmed - ▼ red triangle → SELL signal confirmed ── ENTERING THE TRADE ──────────────────────────────────────── 1. Enter at market price on close of signal candle. 2. Set Stop Loss, TP1, and TP2 at the lines shown on chart. ── MANAGING THE TRADE ──────────────────────────────────────── 1. TP1 hit → Close 50% of position and move SL to Break Even. 2. TP2 hit → Close remaining 50%. Trade complete. 3. SL hit → Accept the loss. ★ GOLDEN RULE: Never let a winning trade turn into a loss. PART 6 — THE VOLUME GRADIENT EXPLAINED READING THE COLOR: • Deep saturated GREEN in BUY zone → Strong buying pressure → Potential BUY signal • Faded pale GREEN in BUY zone → Weak volume → Lower probability • Deep saturated RED in SELL zone → Strong selling pressure → Potential SELL signal PRACTICAL RULE: Only trade when the zone fill is vibrant. PART 7 — TIMEFRAME SETTINGS FOR GOLD CHART TF | HTF SETTING 1 minute | 5 minutes 3 minutes | 15 minutes 5 minutes | 15 minutes 15 minutes | 1 Hour 1 Hour | 4 Hours RECOMMENDED START: 15-minute chart + 1-Hour HTF. LTF BAND SETTINGS: • Length → 20 bars • Inner Multiplier → 1.0 • Outer Multiplier → 2.0 HTF BAND SETTINGS: • Length → 20 bars • Inner Multiplier → 1.5 • Outer Multiplier → 2.25 PART 8 — RISK MANAGEMENT RULES • RULE 1 — POSITION SIZING: Never risk more than 1–2% of account per trade. • RULE 2 — NEWS AVOIDANCE: Avoid new trades 15 minutes BEFORE and AFTER major news. • RULE 3 — DAILY LOSS LIMIT: If you lose 3 trades in a row → STOP for the day. • RULE 4 — MINIMUM RISK/REWARD: Only enter trades where RRR is 1.5:1 or better. • RULE 5 — SESSION AWARENESS: Best hours: London Open (08:00–10:00), NY Open (13:00–15:00), Overlap (13:00–17:00). • RULE 6 — TREND ALIGNMENT IS NON-NEGOTIABLE: HTF Bearish → SELL only. HTF Bullish → BUY only. PART 9 — COMMON MISTAKES TO AVOID MISTAKE | HOW TO AVOID Trading against HTF trend | Check HTF Basis direction FIRST. Entering in Neutral Zone | Only enter in Sell Zone or Buy Zone. Ignoring volume gradient | Faded fill = low conviction. Moving SL further away | Honor the calculated SL. Period. Not taking TP1 | Always close 50% at TP1 and move SL to BE. Chasing missed signals | If you missed the entry candle, skip it. PART 10 — ZONE LABEL SETTINGS The zone labels have fully customizable colors in Settings → Zone Labels. PART 11 — ALERT SETUP (TRADINGVIEW) • Alert 1 → "🟢 BUY Signal | Gold Scalper" • Alert 2 → "🔴 SELL Signal | Gold Scalper" QUICK REFERENCE CARD PRE-TRADE CHECKLIST: HTF Basis direction confirmed? Price is in Sell Zone or Buy Zone? Zone fill color is vibrant / saturated? Signal triangle has appeared? No major news in the next 15 minutes? RRR is 1.5:1 or better? --- Disclaimer: This guideline and the GOLD SCALPER V4.2 indicator are provided for educational purposes only. Trading carries a high level of risk. Always trade with capital you can afford to lose.
Pine Script® インジケーター
Gold_Trading_Expertの投稿
Zero Lag Kalman Structure [BOSWaves]Zero Lag Kalman Structure - Adaptive Trend Filtering with Deviation-Based Structure Detection Overview Zero Lag Kalman Structure is a precision trend identification system that tracks directional price movement through a zero-lag-compensated Kalman filter ribbon, where deviation-based structural levels dynamically form at volatility-normalized extremes and persist as active support and resistance zones until price invalidates them. Instead of relying on fixed moving average crossovers or static support/resistance lookbacks, trend state, level formation, and break detection are determined through Kalman velocity tracking, ATR-normalized deviation measurement, and swing-based structure identification. This creates adaptive trend boundaries and structural zones that reflect actual price conviction rather than arbitrary historical levels - contracting the ribbon during trending conditions when directional certainty is high, forming fresh levels during deviation extremes when price has meaningfully separated from the Kalman baseline, and incorporating BOS/CHoCH detection to reveal whether market structure is continuing or reversing. Price is therefore evaluated relative to a filter that adapts to momentum velocity rather than conventional lagging averages. Conceptual Framework Zero Lag Kalman Structure is founded on the principle that meaningful structural zones emerge when price deviates from its statistically optimal estimated path by a volatility-significant margin, and that trend context is best captured by a filter engineered to eliminate the lag inherent to traditional smoothing methods. Conventional support/resistance tools identify levels through historical pivot lookbacks, which ignore the dynamic nature of price conviction and the statistical state of the current trend. This framework replaces static pivot logic with Kalman-anchored deviation measurement informed by actual filter velocity and error covariance state. Three core principles guide the design: Trend direction should be captured by a velocity-aware Kalman filter with active lag compensation, not by lagging moving averages. Structural levels must form at statistically significant deviation extremes, normalized to current volatility rather than fixed price distances. Market structure breaks and character changes should be identified through swing-based logic tied to the same price data the filter operates on. This shifts trend and structure analysis from static indicator crossovers into adaptive, filter-anchored confidence zones. Theoretical Foundation The indicator combines Kalman filter estimation theory, zero-lag error compensation, ATR-normalized deviation measurement, deviation zone persistence modeling, and swing pivot structure detection. A Kalman filter baseline provides statistically optimal price estimation by balancing process noise and measurement noise parameters, while a velocity tracker within the filter captures directional momentum. Zero-lag compensation applies the residual error between current price and the filter estimate back onto the output, reducing phase delay. Deviation measurement identifies when price has separated from the filter by an ATR-scaled threshold, triggering level creation at the extreme point once price snaps back. BOS/CHoCH detection uses pivot highs and lows to identify structural breaks and character changes. Four internal systems operate in tandem: Kalman Filter Engine : Computes error-covariance-weighted price estimates with integrated velocity tracking, Kalman gain adaptation, and zero-lag correction applied to each bar. Ribbon Construction System : Runs six parallel Kalman instances with incrementally increasing process noise to produce a multi-layered trend ribbon whose spread and color reflect directional strength. Deviation Level Formation Logic : Monitors ATR-normalized distance from the Kalman estimate, records extreme highs and lows during deviation events, and creates persistent zone boxes upon mean reversion. Market Structure Detection : Tracks swing pivot highs and lows using configurable lookback, identifies crossovers of those pivots, and classifies each break as either a BOS continuation or a CHoCH reversal depending on prior structural trend. This design allows the trend filter, structural zones, and structure labels to operate as a unified system rather than independent overlapping indicators. How It Works Zero Lag Kalman Structure evaluates price through a sequence of filter-aware and deviation-driven processes: Kalman State Initialization : On the first bar, filter state initializes with estimate equal to source price, zero velocity, and unit error covariance to establish a clean starting condition. Prediction Step : Each bar predicts the next estimate by advancing the prior estimate by the velocity component weighted by the velocity weight parameter. Velocity Tracking : A separate exponential tracker computes price-change velocity using a 95/5 blend of decayed prior velocity and current bar price change. Kalman Gain Calculation : Gain is computed from current error covariance and measurement noise, controlling the balance between trusting the filter model versus reacting to new price data. Estimate Update : The filtered estimate updates using the Kalman gain applied to the innovation - the difference between current price and the predicted estimate. Zero-Lag Correction : Residual lag error between price and estimate is computed, then multiplied by the zero lag factor and current Kalman gain, and added back to the estimate to compress phase delay. Ribbon Smoothing : The zero-lag estimate passes through a 0.8/0.2 exponential blend each bar to produce the final ribbon line, providing continuity without reintroducing significant lag. Ribbon Color Gradient : The spread between the fastest and slowest ribbon lines is normalized by ATR to produce a ribbon strength value, which drives a color gradient between the configured bullish and bearish colors. Deviation Monitoring : Each bar, the distance between close and the main Kalman line is measured in ATR units. When this exceeds the deviation threshold, the system begins tracking the extreme high or low of that deviation event. Level Creation on Snap-Back : Once price returns inside 50% of the deviation threshold after an extended move, a new zone box is created centered on the tracked extreme, with width scaled to the level width ATR parameter. Level Management : Active levels extend forward each bar. Broken levels - where price closes beyond the zone boundary - are deleted. When the level count reaches the configured maximum, the oldest level is removed to make space. Retest Detection : Depending on the selected retest method, the system either monitors price interaction with zone boundaries or price proximity to the main Kalman line, applying cooldown periods to prevent signal clustering. BOS/CHoCH Detection : Pivot highs and lows are tracked using the swing lookback parameter. Crossovers of the most recent pivot high trigger bullish structural breaks, and crossunders of the most recent pivot low trigger bearish structural breaks. The prior structural trend determines whether each break is classified as continuation (BOS) or reversal (CHoCH). Together, these elements form a continuously updating trend and structure framework anchored in Kalman estimation theory. Interpretation Zero Lag Kalman Structure should be interpreted as a filter-anchored trend state with deviation-driven structural memory: Ribbon Direction : The relative positioning and color of the six-line ribbon communicates directional trend bias. Bullish gradient color with spread above zero reflects upward trend conviction; bearish gradient with inverted spread reflects downward conviction. Ribbon Spread Width : A widening spread between the fastest and slowest Kalman lines indicates strong directional momentum. A compressing spread suggests trend deceleration or potential transition. Resistance Zones (Red) : Created at extreme highs where price deviated significantly above the Kalman line before snapping back, marking areas where price showed unsustainable separation to the upside. Support Zones (Green) : Created at extreme lows where price deviated significantly below the Kalman line before recovering, marking areas where price showed unsustainable separation to the downside. Zone Persistence : Active zones extend forward until broken by a close beyond the zone boundary, treating them as live structural reference until price demonstrably invalidates them. BOS Labels : Dashed lines with "BOS" text mark continuation breaks of prior swing structure in the direction of the established trend. CHoCH Labels : Dotted lines with "CHoCH" text mark counter-trend breaks of prior swing structure, signaling potential trend character changes. ▲ / ▼ Retest Signals : Small directional arrows identify price retesting either a deviation zone boundary or the main Kalman line, depending on the selected retest method. Colored Candles : Bar coloring reflects the current ribbon gradient state for immediate directional reference across the entire chart history. Note: The original chart candles must be disabled in chart settings for the trend-colored candles to display properly. Ribbon gradient strength, zone validity, and structural trend classification outweigh isolated price movements or individual bar reactions. Signal Logic & Visual Cues Zero Lag Kalman Structure presents two categories of structural interaction signals: BOS / CHoCH Events : Labeled lines appear when price crosses a tracked swing pivot. BOS signals continuation of existing structure; CHoCH signals the first counter-trend structural break, indicating potential trend change. Retest Signals (▲ / ▼) : Arrows appear when price interacts with an active deviation zone boundary (Levels mode) or touches the main Kalman line after sufficient separation (Kalman Line mode), confirmed by cooldown period to prevent rapid repeat signals. Alert generation covers deviation level creation, BOS and CHoCH events, Kalman line retests, and support/resistance level retests for systematic monitoring across instruments and timeframes. Strategy Integration Zero Lag Kalman Structure fits within structure-aware and trend-following analytical frameworks: Filter-Confirmed Directional Bias : Use ribbon color and spread direction as the primary trend filter before evaluating entries, favoring positions aligned with ribbon gradient. Deviation Zone Re-entries : Use active support and resistance zones as high-probability re-entry reference areas when price returns to a level from the correct side. BOS/CHoCH Context Alignment : Treat BOS events as continuation confirmation within established trends; treat CHoCH events as early warning of structural regime change requiring reassessment. Retest-Based Entries : Use Kalman line or zone retests as lower-risk entry points within an established trend after initial separation has confirmed directional conviction. Zone Invalidation as Exit Logic : Use level deletion events - where price closes beyond a zone boundary - as structural evidence that the prior support or resistance thesis is no longer valid. Multi-Timeframe Structure Layering : Apply higher-timeframe deviation zones and BOS/CHoCH context to filter lower-timeframe entry signals for improved precision. Technical Implementation Details Core Engine : Kalman filter with error covariance tracking, Kalman gain adaptation, and integrated velocity model Lag Correction : Zero-lag factor applied multiplicatively with current Kalman gain to preserve filter responsiveness at the correction stage Ribbon System : Six parallel Kalman instances with linearly incremented process noise, blended via gradient fill Level Formation : ATR-normalized deviation threshold with extreme tracking, snap-back detection, and box-based zone persistence Structure Detection : Pivot high/low crossover logic with trend state tracking for BOS/CHoCH classification Retest Logic : Dual-mode detection supporting zone boundary interaction and Kalman proximity, each with configurable cooldown Visualization : Gradient ribbon fills, persistent zone boxes, labeled structure lines, and signal arrows Performance Profile : Optimized for real-time execution with per-bar level management across all timeframes Optimal Application Parameters Timeframe Guidance: 1 - 5 min : Short-term structure tracking with responsive deviation settings for intraday scalping 15 - 60 min : Intraday trend context with balanced deviation threshold and level persistence 4H - Daily : Swing-level structure identification with ATR-normalized zones carrying multi-session significance Suggested Baseline Configuration: Process Noise (Q) : 0.01 Measurement Noise (R) : 0.5 Zero Lag Factor : 1.0 Velocity Weight : 0.5 Ribbon Spread : 0.003 Deviation Threshold (ATR) : 1.5 Level Width (ATR) : 0.25 Maximum Levels : 6 Level Extend Bars : 50 Swing Lookback : 5 Retest Method : Kalman Line Retest Cooldown : 50 Show Ribbon : Enabled Show Deviation Levels : Enabled Show BOS / CHoCH : Enabled These suggested parameters should be used as a baseline; their effectiveness depends on the asset's volatility profile, structural characteristics, and preferred signal frequency, so fine-tuning is expected for optimal performance. Parameter Calibration Notes Use the following adjustments to refine behavior without altering the core logic: Filter too reactive to noise : Increase Measurement Noise (R) to make the Kalman gain more conservative and smooth the estimate more aggressively. Filter too slow to respond : Increase Process Noise (Q) to allow faster adaptation to genuine price movements, or increase Zero Lag Factor to strengthen lag correction. Levels forming too frequently : Increase Deviation Threshold to require greater ATR-normalized separation before a level is created. Levels forming too rarely : Decrease Deviation Threshold to trigger level creation at more moderate deviations. Zones too wide or too narrow : Adjust Level Width multiplier to scale zone thickness proportionally to current ATR. Too many active levels cluttering the chart : Reduce Maximum Levels so older zones are removed sooner, keeping only the most recent structural reference. BOS/CHoCH signals too frequent : Increase Swing Lookback to require more significant pivot formations before a structural break is recognized. BOS/CHoCH signals too infrequent : Decrease Swing Lookback for faster swing detection and more responsive structural classification. Retest signals clustering : Increase Retest Cooldown to enforce greater bar separation between consecutive retest events. Adjustments should be incremental and evaluated across multiple session types rather than isolated market conditions. Performance Characteristics High Effectiveness: Trending markets with clear directional phases where Kalman velocity remains consistently signed Instruments with regular mean-reversion behavior where deviation extremes produce reliable structural zones Swing and position trading approaches where BOS/CHoCH context informs multi-bar directional bias Structure-based strategies that benefit from ATR-normalized level placement over fixed-point lookback methods Reduced Effectiveness: Choppy, range-bound markets with frequent shallow deviations that trigger premature level creation Extremely low volatility environments where ATR normalization compresses zones to negligible significance News-driven or gapped markets with discontinuous price behavior that bypasses zone boundaries without interaction Markets with highly irregular volatility profiles where ATR scaling produces inconsistently sized zones Consolidation and sideways price action where trend-following and structure-based methodologies inherently struggle due to lack of sustained directional conviction Integration Guidelines Confluence : Combine with volume analysis, higher-timeframe trend context, or momentum oscillators to confirm deviation zone significance Ribbon Alignment : Trust structural breaks and retest signals occurring in the direction of the current ribbon color gradient Zone Side Discipline : Treat deviation zones as directional only - approach support zones from above for bullish entries, resistance zones from below for bearish entries CHoCH Awareness : Reduce directional exposure when CHoCH events occur against the prior established structural trend until a confirming BOS in the new direction appears Velocity Respect : During periods of high Kalman velocity as reflected by wide ribbon spread, expect price to sustain moves further from the filter before meaningful retests occur Level Invalidation Response : When a zone is broken, treat the break as structural confirmation of the new directional move rather than a retest opportunity Disclaimer Zero Lag Kalman Structure is a professional-grade trend filtering and structure analysis tool. It uses Kalman estimation theory with zero-lag compensation and ATR-normalized deviation measurement but does not predict future price movements. Results depend on market conditions, volatility characteristics, parameter selection, and disciplined execution. BOSWaves recommends deploying this indicator within a broader analytical framework that incorporates volume context, higher-timeframe bias, and comprehensive risk management.
Pine Script® インジケーター
BOSWavesの投稿
7
Kalman Filter [DCAUT]█ Kalman Filter 📊 ORIGINALITY & INNOVATION The Kalman Filter represents an important adaptation of aerospace signal processing technology to financial market analysis. Originally developed by Rudolf E. Kalman in 1960 for navigation and guidance systems, this implementation brings the algorithm's noise reduction capabilities to price trend analysis. This implementation addresses a common challenge in technical analysis: the trade-off between smoothness and responsiveness. Traditional moving averages must choose between being smooth (with increased lag) or responsive (with increased noise). The Kalman Filter improves upon this limitation through its recursive estimation approach, which continuously balances historical trend information with current price data based on configurable noise parameters. The key advancement lies in the algorithm's adaptive weighting mechanism. Rather than applying fixed weights to historical data like conventional moving averages, the Kalman Filter dynamically adjusts its trust between the predicted trend and observed prices. This allows it to provide smoother signals during stable periods while maintaining responsiveness during genuine trend changes, helping to reduce whipsaws in ranging markets while not missing significant price movements. 📐 MATHEMATICAL FOUNDATION The Kalman Filter operates through a two-phase recursive process: Prediction Phase: The algorithm first predicts the next state based on the previous estimate: State Prediction: Estimates the next value based on current trend Error Covariance Prediction: Calculates uncertainty in the prediction Update Phase: Then updates the prediction based on new price observations: Kalman Gain Calculation: Determines the weight given to new measurements State Update: Combines prediction with observation based on calculated gain Error Covariance Update: Adjusts uncertainty estimate for next iteration Core Parameters: Process Noise (Q): Represents uncertainty in the trend model itself. Higher values indicate the trend can change more rapidly, making the filter more responsive to price changes. Measurement Noise (R): Represents uncertainty in price observations. Higher values indicate less trust in individual price points, resulting in smoother output. Kalman Gain Formula: The Kalman Gain determines how much weight to give new observations versus predictions: K = P(k|k-1) / (P(k|k-1) + R) Where: K is the Kalman Gain (0 to 1) P(k|k-1) is the predicted error covariance R is the measurement noise parameter When K approaches 1, the filter trusts new measurements more (responsive). When K approaches 0, the filter trusts its prediction more (smooth). This dynamic adjustment mechanism allows the filter to adapt to changing market conditions automatically, providing an advantage over fixed-weight moving averages. 📊 COMPREHENSIVE SIGNAL ANALYSIS Visual Trend Indication: The Kalman Filter line provides color-coded trend information: Green Line: Indicates the filter value is rising, suggesting upward price momentum Red Line: Indicates the filter value is falling, suggesting downward price momentum Gray Line: Indicates sideways movement with no clear directional bias Crossover Signals: Price-filter crossovers generate trading signals: Golden Cross: Price crosses above the Kalman Filter line, suggests potential bullish momentum development, may indicate a favorable environment for long positions, filter will naturally turn green as it adapts to price moving higher Death Cross: Price crosses below the Kalman Filter line, suggests potential bearish momentum development, may indicate consideration for position reduction or shorts, filter will naturally turn red as it adapts to price moving lower Trend Confirmation: The filter serves as a dynamic trend baseline: Price Consistently Above Filter: Confirms established uptrend Price Consistently Below Filter: Confirms established downtrend Frequent Crossovers: Suggests ranging or choppy market conditions Signal Reliability Factors: Signal quality varies based on market conditions: Higher reliability in trending markets with sustained directional moves Lower reliability in choppy, range-bound conditions with frequent reversals Parameter adjustment can help adapt to different market volatility levels 🎯 STRATEGIC APPLICATIONS Trend Following Strategy: Use the Kalman Filter as a dynamic trend baseline: Enter long positions when price crosses above the filter Enter short positions when price crosses below the filter Exit when price crosses back through the filter in the opposite direction Monitor filter slope (color) for trend strength confirmation Dynamic Support/Resistance: The filter can act as a moving support or resistance level: In uptrends: Filter often provides dynamic support for pullbacks In downtrends: Filter often provides dynamic resistance for bounces Price rejections from the filter can offer entry opportunities in trend direction Filter breaches may signal potential trend reversals Multi-Timeframe Analysis: Combine Kalman Filters across different timeframes: Higher timeframe filter identifies primary trend direction Lower timeframe filter provides precise entry and exit timing Trade only in direction of higher timeframe trend for better probability Use lower timeframe crossovers for position entry/exit within major trend Volatility-Adjusted Configuration: Adapt parameters to match market conditions: Low Volatility Markets (Forex majors, stable stocks): Use lower process noise for stability, use lower measurement noise for sensitivity Medium Volatility Markets (Most equities): Process noise default (0.05) provides balanced performance, measurement noise default (1.0) for general-purpose filtering High Volatility Markets (Cryptocurrencies, volatile stocks): Use higher process noise for responsiveness, use higher measurement noise for noise reduction Risk Management Integration: Use filter as a trailing stop-loss level in trending markets Tighten stops when price moves significantly away from filter (overextension) Wider stops in early trend formation when filter is just establishing direction Consider position sizing based on distance between price and filter 📋 DETAILED PARAMETER CONFIGURATION Source Selection: Determines which price data feeds the algorithm: OHLC4 (default): Uses average of open, high, low, close for balanced representation Close: Focuses purely on closing prices for end-of-period analysis HL2: Uses midpoint of high and low for range-based analysis HLC3: Typical price, gives more weight to closing price HLCC4: Weighted close price, emphasizes closing values Process Noise (Q) - Adaptation Speed Control: This parameter controls how quickly the filter adapts to changes: Technical Meaning: Represents uncertainty in the underlying trend model Higher values allow the estimated trend to change more rapidly Lower values assume the trend is more stable and slow-changing Practical Impact: Lower Values: Produces very smooth output with minimal noise, slower to respond to genuine trend changes, best for long-term trend identification, reduces false signals in choppy markets Medium Values: Balanced responsiveness and smoothness, suitable for swing trading applications, default (0.05) works well for most markets Higher Values: More responsive to price changes, may produce more false signals in ranging markets, better for short-term trading and day trading, captures trend changes earlier, adjust freely based on market characteristics Measurement Noise (R) - Smoothing Control: This parameter controls how much the filter trusts individual price observations: Technical Meaning: Represents uncertainty in price measurements Higher values indicate less trust in individual price points Lower values make each price observation more influential Practical Impact: Lower Values: More reactive to each price change, less smoothing with more noise in output, may produce choppy signals Medium Values: Balanced smoothing and responsiveness, default (1.0) provides general-purpose filtering Higher Values: Heavy smoothing for very noisy markets, reduces whipsaws significantly but increases lag in trend change detection, best for cryptocurrency and highly volatile assets, can use larger values for extreme smoothing Parameter Interaction: The ratio between Process Noise and Measurement Noise determines overall behavior: High Q / Low R: Very responsive, minimal smoothing Low Q / High R: Very smooth, maximum lag reduction Balanced Q and R: Middle ground for most applications Optimization Guidelines: Start with default values (Q=0.05, R=1.0) If too many false signals: Increase R or decrease Q If missing trend changes: Decrease R or increase Q Test across different market conditions before live use Consider different settings for different timeframes 📈 PERFORMANCE ANALYSIS & COMPETITIVE ADVANTAGES Comparison with Traditional Moving Averages: Versus Simple Moving Average (SMA): The Kalman Filter typically responds faster to genuine trend changes Produces smoother output than SMA of comparable length Better noise reduction in ranging markets More configurable for different market conditions Versus Exponential Moving Average (EMA): Similar responsiveness but with better noise filtering Less prone to whipsaws in choppy conditions More adaptable through dual parameter control (Q and R) Can be tuned to match or exceed EMA responsiveness while maintaining smoothness Versus Hull Moving Average (HMA): Different noise reduction approach (recursive estimation vs. weighted calculation) Kalman Filter offers more intuitive parameter adjustment Both reduce lag effectively, but through different mechanisms Kalman Filter may handle sudden volatility changes more gracefully Response Characteristics: Lag Time: Moderate and configurable through parameter adjustment Noise Reduction: Good to excellent, particularly in volatile conditions Trend Detection: Effective across multiple timeframes False Signal Rate: Typically lower than simple moving averages in ranging markets Computational Efficiency: Efficient recursive calculation suitable for real-time use Optimal Use Cases: Markets with mixed trending and ranging periods Assets with moderate to high volatility requiring noise filtering Multi-timeframe analysis requiring consistent methodology Systematic trading strategies needing reliable trend identification Situations requiring balance between responsiveness and smoothness Known Limitations: Parameters require adjustment for different market volatility levels May still produce false signals during extreme choppy conditions No single parameter set works optimally for all market conditions Requires complementary indicators for comprehensive analysis Historical performance characteristics may not persist in changing market conditions USAGE NOTES This indicator is designed for technical analysis and educational purposes. The Kalman Filter's effectiveness varies with market conditions, tending to perform better in markets with clear trending phases interrupted by consolidation. Like all technical indicators, it has limitations and should not be used as the sole basis for trading decisions, but rather as part of a comprehensive trading approach. Algorithm performance varies with market conditions, and past characteristics do not guarantee future results. Always test thoroughly with different parameter settings across various market conditions before using in live trading. No technical indicator can predict future price movements with certainty, and all trading involves risk of loss.
Pine Script® インジケーター
DCAUTの投稿
Algorithmic Kalman Filter [CRYPTIK1]Price action is chaos. Markets are driven by high-frequency algorithms, emotional reactions, and raw speculation, creating a constant stream of noise that obscures the true underlying trend. A simple moving average is too slow, too primitive to navigate this environment effectively. It lags, it gets chopped up, and it fails when you need it most. This script implements an Algorithmic Kalman Filter (AKF), a sophisticated signal processing algorithm adapted from aerospace and robotic guidance systems. Its purpose is singular: to strip away market noise and provide a hyper-adaptive, self-correcting estimate of an asset's true trajectory. The Concept: An Adaptive Intelligence Unlike a moving average that mindlessly averages past data, the Kalman Filter operates on a two-step principle: Predict and Update. Predict: On each new bar, the filter makes a prediction of the true price based on its previous state. Update: It then measures the error between its prediction and the actual closing price. It uses this error to intelligently correct its estimate, learning from its mistakes in real-time. The result is a flawlessly smooth line that adapts to volatility. It remains stable during chop and reacts swiftly to new trends, giving you a crystal-clear view of the market's real intention. How to Wield the Filter: The Core Settings The power of the AKF lies in its two tuning parameters, which allow you to calibrate the filter's "brain" to any asset or timeframe. Process Noise (Q) - Responsiveness: This controls how much you expect the true trend to change. A higher Q value makes the filter more sensitive and responsive to recent price action. Use this for highly volatile assets or lower timeframes. A lower Q value makes the filter smoother and more stable, trusting that the underlying trend is slow-moving. Use this for higher timeframes or ranging markets. Measurement Noise (R) - Smoothness: This controls how much you trust the incoming price data. A higher R value tells the filter that the price is extremely noisy and to be more skeptical. This results in a much smoother, slower-moving line. A lower R value tells the filter to trust the price data more, resulting in a line that tracks price more closely. The interaction between Q and R is what gives the filter its power. The default settings provide a solid baseline, but a true operator will fine-tune these to perfectly match the rhythm of their chosen market. Tactical Application The AKF is not just a line; it's a complete framework for viewing the market. Trend Identification: The primary signal. The filter's color code provides an unambiguous definition of the trend. Teal for an uptrend, Pink for a downtrend. No more guesswork. Dynamic Support & Resistance: The filter itself acts as a dynamic level. Watch for price to pull back and find support on a rising (Teal) filter in an uptrend, or to be rejected by a falling (Pink) filter in a downtrend. A Higher-Order Filter: Use the AKF's trend state to filter signals from your primary strategy. For example, only take long signals when the AKF is Teal. This single rule can dramatically reduce noise and eliminate low-probability trades. This is a professional-grade tool for traders who are serious about gaining a statistical edge. Ditch the lagging averages. Extract the signal from the noise.
Pine Script® インジケーター
CRYPTIK1の投稿
Kaufman Trend Strength Signal█ Overview Kaufman Trend Strength Signal is an advanced trend detection tool that decomposes price action into its underlying directional trend and localized oscillation using a vector-based Kalman Filter. By integrating adaptive smoothing and dynamic weighting via a weighted moving average (WMA), this indicator provides real-time insight into both trend direction and trend strength — something standard moving averages often fail to capture. The core model assumes that observed price consists of two components: (1) a directional trend, and (2) localized noise or oscillation. Using a two-step Predict & Update cycle, the filter continuously refines its trend estimate as new market data becomes available. █ How It Works This indicator employs a Kalman Filter model that separates the trend from short-term fluctuations in a price series. Predict & Update Cycle : With each new bar, the filter predicts the price state and updates that prediction using the latest observed price, producing a smooth but adaptive trend line. Trend Strength Normalization : Internally, the oscillator component is normalized against recent values (N periods) to calculate a trend strength score between -100 and +100. (Note: The oscillator is not plotted on the chart but is used for signal generation.) Filtered MA Line : The trend component is plotted as a smooth Kalman Filter-based moving average (MA) line on the main chart. Threshold Cross Signals : When the internal trend strength crosses a user-defined threshold (default: ±60), visual entry arrows are displayed to signal momentum shifts. █ Key Features Adaptive Trend Estimation : Real-time filtering that adjusts dynamically to market changes. Visual Buy/Sell Signals : Entry arrows appear when the trend strength crosses above or below the configured threshold. Built-in Range Filter : The MA line turns blue when trend strength is weak (|value| < 10), helping you filter out choppy, sideways conditions. █ How to Use Trend Detection :  • Green MA = bullish trend  • Red MA = bearish trend  • Blue MA = no trend / ranging market Entry Signals :  • Green triangle = trend strength crossed above +Threshold → potential bullish entry  • Red triangle = trend strength crossed below -Threshold → potential bearish entry █ Settings Entry Threshold : Level at which the trend strength triggers entry signals (default: 60) Process Noise 1 & 2 : Control the filter’s responsiveness to recent price action. Higher = more reactive; lower = smoother. Measurement Noise : Sets how much the filter "trusts" price data. High = smoother MA, low = faster response but more noise. Trend Lookback (N2) : Number of bars used to normalize trend strength. Lower = more sensitive; higher = more stable. Trend Smoothness (R2) : WMA smoothing applied to the trend strength calculation. █ Visual Guide Green MA Line → Bullish trend Red MA Line → Bearish trend Blue MA Line → Sideways/range Green Triangle → Entry signal (trend strengthening) Red Triangle → Entry signal (trend weakening) █ Best Practices In high-volatility conditions, increase Measurement Noise to reduce false signals. Combine with other indicators (e.g., RSI, MACD, EMA) for confirmation and filtering. Adjust "Entry Threshold" and noise settings depending on your timeframe and trading style. ❗ Disclaimer This script is provided for educational purposes only and should not be considered financial advice or a recommendation to buy/sell any asset. Trading involves risk. Past performance does not guarantee future results. Always perform your own analysis and use proper risk management when trading.
Pine Script® インジケーター
PakunFXの投稿
Kaufman Trend Strategy# ✅ Kaufman Trend Strategy – Full Description (Script Publishing Version) **Kaufman Trend Strategy** is a dynamic trend-following strategy based on Kaufman Filter theory. It detects real-time trend momentum, reduces noise, and aims to enhance entry accuracy while optimizing risk. ⚠️ _For educational and research purposes only. Past performance does not guarantee future results._ --- ## 🎯 Strategy Objective - Smooth price noise using Kaufman Filter smoothing - Detect the strength and direction of trends with a normalized oscillator - Manage profits using multi-stage take-profits and adaptive ATR stop-loss logic --- ## ✨ Key Features - **Kaufman Filter Trend Detection** Extracts directional signal using a state space model. - **Multi-Stage Profit-Taking** Automatically takes partial profits based on color changes and zero-cross events. - **ATR-Based Volatility Stops** Stops adjust based on swing highs/lows and current market volatility. --- ## 📊 Entry & Exit Logic **Long Entry** - `trend_strength ≥ 60` - Green trend signal - Price above the Kaufman average **Short Entry** - `trend_strength ≤ -60` - Red trend signal - Price below the Kaufman average **Exit (Long/Short)** - Blue trend color → TP1 (50%) - Oscillator crosses 0 → TP2 (25%) - Trend weakens → Final exit (25%) - ATR + swing-based stop loss --- ## 💰 Risk Management - Initial capital: `$3,000` - Order size: `$100` per trade (realistic, low-risk sizing) - Commission: `0.002%` - Slippage: `2 ticks` - Pyramiding: `1` max position - Estimated risk/trade: `~0.1–0.5%` of equity > ⚠️ _No trade risks more than 5% of equity. This strategy follows TradingView script publishing rules._ --- ## ⚙️ Default Parameters - **1st Take Profit**: 50% - **2nd Take Profit**: 25% - **Final Exit**: 25% - **ATR Period**: 14 - **Swing Lookback**: 10 - **Entry Threshold**: ±60 - **Exit Threshold**: ±40 --- ## 📅 Backtest Summary - **Symbol**: USD/JPY - **Timeframe**: 1H - **Date Range**: Jan 3, 2022 – Jun 4, 2025 - **Trades**: 924 - **Win Rate**: 41.67% - **Profit Factor**: 1.108 - **Net Profit**: +$1,659.29 (+54.56%) - **Max Drawdown**: -$1,419.73 (-31.87%) --- ## ✅ Summary This strategy uses Kaufman filtering to detect market direction with reduced lag and increased smoothness. It’s built with visual clarity and strong trade management, making it practical for both beginners and advanced users. --- ## 📌 Disclaimer This script is for educational and informational purposes only and should not be considered financial advice. Use with proper risk controls and always test in a demo environment before live trading.
Pine Script® ストラテジー
PakunFXの投稿
Kalman Filtered RSI | [DeV]The Kalman Filtered RSI indicator is an advanced tool designed for traders who want precise, noise-free market insights. By enhancing the classic Relative Strength Index (RSI) with a Kalman filter, this indicator delivers a smoother, more reliable view of market momentum, helping you identify trends, reversals, and overbought/oversold conditions with greater accuracy. It’s an ideal choice for traders seeking clear signals amidst market volatility, giving you a competitive edge across any trading environment. The RSI measures momentum by analyzing price movements over a set period, typically 14 bars. It calculates the average of price gains on up days and the average of price losses on down days, then compares these to produce a value between 0 and 100. An RSI above 70 often indicates an overbought market that may reverse downward, while below 30 suggests an oversold market that could reverse upward. RSI is great for spotting momentum shifts, potential reversals, and trend strength, but it can be noisy in choppy markets, leading to misleading signals. That's where the Kalman filter comes in; it enhances the RSI by applying a sophisticated smoothing process that predicts the RSI’s next value based on its historical trend, then updates this prediction with the actual RSI reading. It operates in two phases: prediction and correction. In the prediction phase, it uses the previous filtered RSI and adds uncertainty from process noise (Q), which is derived from the historical variance of RSI changes, reflecting how much the RSI might unexpectedly shift. In the correction phase, it calculates a Kalman gain based on the ratio of prediction uncertainty to measurement noise (R), which is determined from the variance between raw RSI and a smoothed version, indicating the raw data’s noisiness. This gain weights how much the filter trusts the new RSI versus the prediction, blending them to produce a smoothed RSI that reduces noise while staying responsive to real trends, outperforming simpler methods like moving averages that often lag or oversmooth. With the Kalman Filtered RSI, you get a refined view of momentum, making it easier to spot trends and reversals with clarity. This indicator’s ability to dynamically adapt to market changes delivers timely, reliable signals, making it a powerful addition to your trading strategy for any market or timeframe.
Pine Script® インジケーター
DeVriziiの投稿
KalmanfilterLibrary "Kalmanfilter" A sophisticated Kalman Filter implementation for financial time series analysis @author Rocky-Studio @version 1.0 initialize(initial_value, process_noise, measurement_noise)   Initializes Kalman Filter parameters   Parameters:      initial_value (float) : (float) The initial state estimate      process_noise (float) : (float) The process noise coefficient (Q)      measurement_noise (float) : (float) The measurement noise coefficient (R)   Returns: A tuple containing update(prev_state, prev_covariance, measurement, process_noise, measurement_noise)   Update Kalman Filter state   Parameters:      prev_state (float)      prev_covariance (float)      measurement (float)      process_noise (float)      measurement_noise (float) calculate_measurement_noise(price_series, length)   Adaptive measurement noise calculation   Parameters:      price_series (array)      length (int) calculate_measurement_noise_simple(price_series)   Parameters:      price_series (array) update_trading(prev_state, prev_velocity, prev_covariance, measurement, volatility_window)   Enhanced trading update with velocity   Parameters:      prev_state (float)      prev_velocity (float)      prev_covariance (float)      measurement (float)      volatility_window (int) model4_update(prev_mean, prev_speed, prev_covariance, price, process_noise, measurement_noise)   Kalman Filter Model 4 implementation (Benhamou 2018)   Parameters:      prev_mean (float)      prev_speed (float)      prev_covariance (array)      price (float)      process_noise (array)      measurement_noise (float) model4_initialize(initial_price)   Initialize Model 4 parameters   Parameters:      initial_price (float) model4_default_process_noise()   Create default process noise matrix for Model 4 model4_calculate_measurement_noise(price_series, length)   Adaptive measurement noise calculation for Model 4   Parameters:      price_series (array)      length (int)
Pine Script® ライブラリ
Rocky-Studioの投稿
Auto-Adjusting Kalman Filter by TenozenNew year, new indicator! Auto-Adjusting Kalman Filter is an indicator designed to provide an adaptive approach to trend analysis. Using the Kalman Filter (a recursive algorithm used in signal processing), this algo dynamically adjusts to market conditions, offering traders a reliable way to identify trends and manage risk! In other words, it's a remaster of my previous indicator, Kalman Filter by Tenozen. What's the difference with the previous indicator (Kalman Filter by Tenozen)? The indicator adjusts its parameters (Q and R) in real-time using the Average True Range (ATR) as a measure of market volatility. This ensures the filter remains responsive during high-volatility periods and smooth during low-volatility conditions, optimizing its performance across different market environments. The filter resets on a user-defined timeframe, aligning its calculations with dominant trends and reducing sensitivity to short-term noise. This helps maintain consistency with the broader market structure. A confidence metric, derived from the deviation of price from the Kalman filter line (measured in ATR multiples), is visualized as a heatmap: Green : Bullish confidence (higher values indicate stronger trends). Red : Bearish confidence (higher values indicate stronger trends). Gray : Neutral zone (low confidence, suggesting caution). This provides a clear, objective measure of trend strength. How it works? The Kalman Filter estimates the "true" price by filtering out market noise. It operates in two steps, that is, prediction and update. Prediction is about projection the current state (price) forward. Update is about adjusting the prediction based on the latest price data. The filter's parameters (Q and R) are scaled using normalized ATR, ensuring adaptibility to changing market conditions. So it means that, Q (Process Noise) increases during high volatility, making the filter more responsive to price changes and R (Measurement Noise) increases during low volatility, smoothing out the filter to avoid overreacting to minor fluctuations. Also, the trend confidence is calculated based on the deviation of price from the Kalman filter line, measured in ATR multiples, this provides a quantifiable measure of trend strength, helping traders assess market conditions objectively. How to use? Use the Kalman Filter line to identify the prevailing trend direction. Trade in alignment with the filter's slope for higher-probability setups. Look for pullbacks toward the Kalman Filter line during strong trends (high confidence zones) Utilize the dynamic stop-loss and take-profit levels to manage risk and lock in profits Confidence Heatmap provides an objective measure of market sentiment, helping traders avoid low-confidence (neutral) zones and focus on high-probability opportunities Guess that's it! I hope this indicator helps! Let me know if you guys got some feedback! Ciao!
Pine Script® インジケーター
Tenozenの投稿
4
Quantitative Breakout Bands (AIBitcoinTrend)Quantitative Breakout Bands (AIBitcoinTrend) is an advanced indicator designed to adapt to dynamic market conditions by utilizing a Kalman filter for real-time data analysis and trend detection. This innovative tool empowers traders to identify price breakouts, evaluate trends, and refine their trading strategies with precision. 👽 What Are Quantitative Breakout Bands, and Why Are They Unique? Quantitative Breakout Bands combine advanced filtering techniques (Kalman Filters) with statistical measures such as mean absolute error (MAE) to create adaptive price bands. These bands adjust to market conditions dynamically, providing insights into volatility, trend strength, and breakout opportunities. What sets this indicator apart is its ability to incorporate both position (price) and velocity (rate of price change) into its calculations, making it highly responsive yet smooth. This dual consideration ensures traders get reliable signals without excessive lag or noise. 👽 The Math Behind the Indicator 👾 Kalman Filter Estimation: At the core of the indicator is the Kalman Filter, a recursive algorithm used to predict the next state of a system based on past observations. It incorporates two primary elements: State Prediction: The indicator predicts future price (position) and velocity based on previous values. Error Covariance Adjustment: The process and measurement noise parameters refine the prediction's accuracy by balancing smoothness and responsiveness. 👾 Breakout Bands Calculation: The breakout bands are derived from the mean absolute error (MAE) of price deviations relative to the filtered trendline: float upperBand = kalmanPrice + bandMultiplier * mae float lowerBand = kalmanPrice - bandMultiplier * mae The multiplier allows traders to adjust the sensitivity of the bands to market volatility. 👾 Slope-Based Trend Detection: A weighted slope calculation measures the gradient of the filtered price over a configurable window. This slope determines whether the market is trending bullish, bearish, or neutral. 👾 Trailing Stop Mechanism: The trailing stop employs the Average True Range (ATR) to calculate dynamic stop levels. This ensures positions are protected during volatile moves while minimizing premature exits. 👽 How It Adapts to Price Movements Dynamic Noise Calibration: By adjusting process and measurement noise inputs, the indicator balances smoothness (to reduce noise) with responsiveness (to adapt to sharp price changes). Trend Responsiveness: The Kalman Filter ensures that trend changes are quickly identified, while the slope calculation adds confirmation. Volatility Sensitivity: The MAE-based bands expand and contract in response to changes in market volatility, making them ideal for breakout detection. 👽 How Traders Can Use the Indicator 👾 Breakout Detection: Bullish Breakouts: When the price moves above the upper band, it signals a potential upward breakout. Bearish Breakouts: When the price moves below the lower band, it signals a potential downward breakout. The trailing stop feature offers a dynamic way to lock in profits or minimize losses during trending moves. 👾 Trend Confirmation: The color-coded Kalman line and slope provide visual cues: Bullish Trend: Positive slope, green line. Bearish Trend: Negative slope, red line. 👽 Why It’s Useful for Traders Dynamic and Adaptive: The indicator adjusts to changing market conditions, ensuring relevance across timeframes and asset classes. Noise Reduction: The Kalman Filter smooths price data, eliminating false signals caused by short-term noise. Comprehensive Insights: By combining breakout detection, trend analysis, and risk management, it offers a holistic trading tool. 👽 Indicator Settings Process Noise (Position & Velocity): Adjusts filter responsiveness to price changes. Measurement Noise: Defines expected price noise for smoother trend detection. Slope Window: Configures the lookback for slope calculation. Lookback Period for MAE: Defines the sensitivity of the bands to volatility. Band Multiplier: Controls the band width. ATR Multiplier: Adjusts the sensitivity of the trailing stop. Line Width: Customizes the appearance of the trailing stop line. Disclaimer: This indicator is designed for educational purposes and does not constitute financial advice. Please consult a qualified financial advisor before making investment decisions.
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aibitcointrendの投稿
3
Kalman Filter Oscillator v4The Kalman Filter Oscillator v4 is an advanced tool designed to help traders and investors identify trends more effectively while reducing the impact of market noise. As the latest iteration in its development, this version integrates improvements that make it more adaptive and precise, catering to the challenges of today’s financial markets. This indicator operates on the principle of the Kalman filter, a well-regarded mathematical approach used for estimating the state of a dynamic system. By filtering out random fluctuations, it smooths price data to provide clearer insights into underlying trends. Unlike traditional methods such as moving averages, which often lag and can miss rapid shifts, the Kalman Filter Oscillator is reactive in real time, making it particularly suited for dynamic markets. Version v4 builds on earlier versions by offering a refined combination of short-term and long-term trend analysis. Through adjustable parameters, traders can balance sensitivity to immediate price changes with a broader perspective of the market direction. Additionally, the oscillator incorporates a unique feature that tracks a price’s position relative to its recent highs and lows, which enhances its ability to pinpoint potential turning points or key market conditions. The indicator’s value lies in its adaptability and practicality. Traders can use it to confirm trends, identify overbought or oversold conditions, or smooth out erratic price movements, reducing the likelihood of false signals. By presenting information in a clear and actionable format, it allows users to make better-informed decisions with greater confidence. As of late 2024, the Kalman Filter Oscillator v4 represents a sophisticated yet user-friendly advancement in trend analysis. While not a one-size-fits-all solution, it serves as a valuable component in a trader’s toolkit, complementing other strategies and enhancing overall market understanding.
Pine Script® インジケーター
Julien_Exeの投稿
3
Kalman PredictorThe **Kalman Predictor** indicator is a powerful tool designed for traders looking to enhance their market analysis by smoothing price data and projecting future price movements. This script implements a Kalman filter, a statistical method for noise reduction, to dynamically estimate price trends and velocity. Combined with ATR-based confidence bands, it provides actionable insights into potential price movement, while offering clear trend and momentum visualization. --- #### **Key Features**: 1. **Kalman Filter Smoothing**: - Dynamically estimates the current price state and velocity to filter out market noise. - Projects three future price levels (`Next Bar`, `Next +2`, `Next +3`) based on velocity. 2. **Dynamic Confidence Bands**: - Confidence bands are calculated using ATR (Average True Range) to reflect market volatility. - Visualizes potential price deviation from projected levels. 3. **Trend Visualization**: - Color-coded prediction dots: - **Green**: Indicates an upward trend (positive velocity). - **Red**: Indicates a downward trend (negative velocity). - Dynamically updated label displaying the current trend and velocity value. 4. **User Customization**: - Inputs to adjust the process and measurement noise for the Kalman filter (`q` and `r`). - Configurable ATR multiplier for confidence bands. - Toggleable trend label with adjustable positioning. --- #### **How It Works**: 1. **Kalman Filter Core**: - The Kalman filter continuously updates the estimated price state and velocity based on real-time price changes. - Projections are based on the current price trend (velocity) and extend into the future (Next Bar, +2, +3). 2. **Confidence Bands**: - Calculated using ATR to provide a dynamic range around the projected future prices. - Indicates potential volatility and helps traders assess risk-reward scenarios. 3. **Trend Label**: - Updates dynamically on the last bar to show: - Current trend direction (Up/Down). - Velocity value, providing insight into the expected magnitude of the price movement. --- #### **How to Use**: - **Trend Analysis**: - Observe the direction and spacing of the prediction dots relative to current candles. - Larger spacing indicates a potential strong move, while clustering suggests consolidation. - **Risk Management**: - Use the confidence bands to gauge potential price volatility and set stop-loss or take-profit levels accordingly. - **Pullback Detection**: - Look for flattening or clustering of dots during trends as a signal of potential pullbacks or reversals. --- #### **Customizable Inputs**: - **Kalman Filter Parameters**: - `lookback`: Adjusts the smoothing window. - `q`: Process noise (higher values make the filter more reactive to changes). - `r`: Measurement noise (controls sensitivity to price deviations). - **Confidence Bands**: - `band_multiplier`: Multiplies ATR to define the range of confidence bands. - **Visualization**: - `show_label`: Option to toggle the trend label. - `label_offset`: Adjusts the label’s distance from the price for better visibility. --- #### **Examples of Use**: - **Scalping**: Use on lower timeframes (e.g., 1-minute, 5-minute) to detect short-term price trends and reversals. - **Swing Trading**: Identify pullbacks or continuations on higher timeframes (e.g., 4-hour, daily) by observing the prediction dots and confidence bands. - **Risk Assessment**: Confidence bands help visualize potential price volatility, aiding in the placement of stops and targets. --- #### **Notes for Traders**: - The **Kalman Predictor** does not predict the future with certainty but provides a statistically informed estimate of price movement. - Confidence bands are based on historical volatility and should be used as guidelines, not guarantees. - Always combine this tool with other analysis techniques for optimal results. --- This script is open-source, and the Kalman filter logic has been implemented uniquely to integrate noise reduction with dynamic confidence band visualization. If you find this indicator useful, feel free to share your feedback and experiences! --- #### **Credits**: This script was developed leveraging the statistical principles of Kalman filtering and is entirely original. It incorporates ATR for dynamic confidence band calculations to enhance trader usability and market adaptability.
Pine Script® インジケーター
Finntech1の投稿
Kalman Trend Levels [BigBeluga]Kalman Trend Levels is an advanced trend-following indicator designed to highlight key support and resistance zones based on Kalman filter crossovers. With dynamic trend analysis and actionable signals, it helps traders interpret market direction and momentum shifts effectively. 🔵 Key Features: Trend Levels with Crossover Boxes: Identifies trend shifts by tracking crossovers between fast and slow Kalman filters. When the fast line crosses above the slow line, a green box level appears, indicating a potential support zone. When it crosses below, a red box level forms, acting as a resistance zone. Retest Signals for Support and Resistance Levels: Enable retest signals to capture price rejections at the established levels, providing possible re-entry points where the price confirms a support or resistance area. Adaptive Candle Coloring by Trend Momentum: Candle colors adjust based on the trend's strength: > During a downtrend, if the fast Kalman line shows upward movement, indicating reduced bearish momentum, candles turn gray to signal the weakening trend. > In an uptrend, when the fast Kalman line declines, showing lower bullish momentum, candles become gray, signaling a potential slowdown in upward movement. Crossover Signals with Price Labels: Displays arrows with price values at crossover points for quick reference, marking where the fast line overtakes or dips below the slow line. These labels provide a precise price snapshot of significant trend changes. 🔵 When to Use: The Kalman Trend Levels indicator is ideal for traders looking to identify and act upon trend changes and significant price zones. By visualizing key levels and momentum shifts, this tool allows you to: Define support and resistance zones that align with trend direction. Identify and react to trend weakening or strengthening via candle color changes. Use retest signals for potential re-entries at critical levels. See crossover points and price values to gain a clearer view of trend changes in real time. With its focus on trend direction, support/resistance, and momentum clarity, Kalman Trend Levels is an essential tool for navigating trending markets, providing actionable insights with every crossover and trend shift.
Pine Script® インジケーター
BigBelugaの投稿
48
Adaptive Kalman filter - Trend Strength Oscillator (Zeiierman)█ Overview The Adaptive Kalman Filter - Trend Strength Oscillator by Zeiierman is a sophisticated trend-following indicator that uses advanced mathematical techniques, including vector and matrix operations, to decompose price movements into trend and oscillatory components. Unlike standard indicators, this model assumes that price is driven by two latent (unobservable) factors: a long-term trend and localized oscillations around that trend. Through a dynamic "predict and update" process, the Kalman Filter leverages vectors to adaptively separate these components, extracting a clearer view of market direction and strength. █ How It Works This indicator operates on a trend + local change Kalman Filter model. It assumes that price movements consist of two underlying components: a core trend and an oscillatory term, representing smaller price fluctuations around that trend. The Kalman Filter adaptively separates these components by observing the price series over time and performing real-time updates as new data arrives. Predict and Update Procedure: The Kalman Filter uses an adaptive predict-update cycle to estimate both components. This cycle allows the filter to adjust dynamically as the market evolves, providing a smooth yet responsive signal. The trend component extracted from this process is plotted directly, giving a clear view of the prevailing direction. The oscillatory component indicates the tendency or strength of the trend, reflected in the green/red coloration of the oscillator line. Trend Strength Calculation: Trend strength is calculated by comparing the current oscillatory value against a configurable number of past values. █ Three Kalman filter Models This indicator offers three distinct Kalman filter models, each designed to handle different market conditions: Standard Model: This is a conventional Kalman Filter, balancing responsiveness and smoothness. It works well across general market conditions. Volume-Adjusted Model: In this model, the filter’s measurement noise automatically adjusts based on trading volume. Higher volumes indicate more informative price movements, which the filter treats with higher confidence. Conversely, low-volume movements are treated as less informative, adding robustness during low-activity periods. Parkinson-Adjusted Model: This model adjusts measurement noise based on price volatility. It uses the price range (high-low) to determine the filter’s sensitivity, making it ideal for handling markets with frequent gaps or spikes. The model responds with higher confidence in low-volatility periods and adapts to high-volatility scenarios by treating them with more caution. █ How to Use Trend Detection: The oscillator oscillates around zero, with positive values indicating a bullish trend and negative values indicating a bearish trend. The further the oscillator moves from zero, the stronger the trend. The Kalman filter trend line on the chart can be used in conjunction with the oscillator to determine the market's trend direction. Trend Reversals: The blue areas in the oscillator suggest potential trend reversals, helping traders identify emerging market shifts. These areas can also indicate a potential pullback within the prevailing trend. Overbought/Oversold: The thresholds, such as 70 and -70, help identify extreme conditions. When the oscillator reaches these levels, it suggests that the trend may be overextended, possibly signaling an upcoming reversal. █ Settings Process Noise 1: Controls the primary level of uncertainty in the Kalman filter model. Higher values make the filter more responsive to recent price changes, but may also increase susceptibility to random noise. Process Noise 2: This secondary noise setting works with Process Noise 1 to adjust the model's adaptability. Together, these settings manage the uncertainty in the filter's internal model, allowing for finely-tuned adjustments to smoothness versus responsiveness. Measurement Noise: Sets the uncertainty in the observed price data. Increasing this value makes the filter rely more on historical data, resulting in smoother but less reactive filtering. Lower values make the filter more responsive but potentially more prone to noise. O sc Smoothness: Controls the level of smoothing applied to the trend strength oscillator. Higher values result in a smoother oscillator, which may cause slight delays in response. Lower values make the oscillator more reactive to trend changes, useful for capturing quick reversals or volatility within the trend. Kalman Filter Model: Choose between Standard, Volume-Adjusted, and Parkinson-Adjusted models. Each model adapts the Kalman filter for specific conditions, whether balancing general market data, adjusting based on volume, or refining based on volatility. Trend Lookback: Defines how far back to look when calculating the trend strength, which impacts the indicator's sensitivity to changes in trend strength. Shorter values make the oscillator more reactive to recent trends, while longer values provide a smoother reading. Strength Smoothness: Adjusts the level of smoothing applied to the trend strength oscillator. Higher values create a more gradual response, while lower values make the oscillator more sensitive to recent changes. ----------------- Disclaimer The information contained in my Scripts/Indicators/Ideas/Algos/Systems does not constitute financial advice or a solicitation to buy or sell any securities of any type. I will not accept liability for any loss or damage, including without limitation any loss of profit, which may arise directly or indirectly from the use of or reliance on such information. All investments involve risk, and the past performance of a security, industry, sector, market, financial product, trading strategy, backtest, or individual's trading does not guarantee future results or returns. Investors are fully responsible for any investment decisions they make. Such decisions should be based solely on an evaluation of their financial circumstances, investment objectives, risk tolerance, and liquidity needs. My Scripts/Indicators/Ideas/Algos/Systems are only for educational purposes!
Pine Script® インジケーター
Zeiiermanの投稿
39
Kalman Based VWAP [EdgeTerminal]Kalman VWAP is a different take on volume-weighted average price (VWAP) indicator where we enhance the results with Kalman filtering and dynamic wave visualization for a more smooth and improved trend identification and volatility analysis. A little bit about Kalman Filter: Kalman filtering (also known as linear quadratic estimation) is an algorithm that uses a series of measurements observed over time, including statistical noise and other inaccuracies, to produce estimates of unknown variables that tend to be more accurate than those based on a single measurement, by estimating a joint probability distribution over the variables for each time-step. The filter is constructed as a mean squared error minimiser, but an alternative derivation of the filter is also provided showing how the filter relates to maximum likelihood statistics This indicator combines: Volume-Weighted Average Price (VWAP) for institutional price levels Kalman filtering for noise reduction and trend smoothing Dynamic wave visualization for volatility zones This creates a robust indicator that helps traders identify trends, support/resistance zones, and potential reversal points with high precision. What makes this even more special is the fact that we use open price as a data source instead of usual close price. This allows you to tune the indicator more accurately when back testing it and generally get results that are closer to real time market data. The math: In case if you're interested in the math of this indicator, the indicator employs a state-space Kalman filter model: State Equation: x_t = x_{t-1} + w_t Measurement Equation: z_t = x_t + v_t x_t is the filtered VWAP state w_t is process noise ~ N(0, Q) v_t is measurement noise ~ N(0, R) z_t is the traditional VWAP measurement The Kalman filter recursively updates through: Prediction: x̂_t|t-1 = x̂_{t-1} Update: x̂_t = x̂_t|t-1 + K_t(z_t - x̂_t|t-1) Where K_t is the Kalman gain, optimally balancing between prediction and measurement. Input Parameters Measurement Noise: Controls signal smoothing (0.0001 to 1.0) Process Noise: Adjusts trend responsiveness (0.0001 to 1.0) Wave Size: Multiplier for volatility bands (0.1 to 5.0) Trend Lookback: Period for trend determination (1 to 100) Bull/Bear Colors: Customizable color schemes Application: I recommend using this along other indicators. This is best used for assets that don't have a close time, such as BTC but can be used with anything as long as the data is there. With default settings, this works better for swing trades but you can adjust it for day trading as well, by adjusting the lookback and also process noise.
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EdgeTerminalの投稿
5
Kalman Hull RSI [BackQuant]Kalman Hull RSI At its core, this indicator uses a Kalman filter of price, put inside of a hull moving average function (replacing the weighted moving averages) and then using that as a price source for the the RSI, very similar to the Kalman Hull Supertrend just processing price for a different indicator. This also allows it to make it more adaptive to price and also sensitive to recent price action. This indicator is also mainly built for trend-following systems PLEASE Read the following, knowing what an indicator does at its core before adding it into a system is pivotal. The core concepts can allow you to include it in a logical and sound manner. 1. What is a Kalman Filter The Kalman Filter is an algorithm renowned for its efficiency in estimating the states of a linear dynamic system amidst noisy data. It excels in real-time data processing, making it indispensable in fields requiring precise and adaptive filtering, such as aerospace, robotics, and financial market analysis. By leveraging its predictive capabilities, traders can significantly enhance their market analysis, particularly in estimating price movements more accurately. If you would like this on its own, with a more in-depth description please see our Kalman Price Filter. OR our Kalman Hull Supertrend 2. Hull Moving Average (HMA) and Its Core Calculation The Hull Moving Average (HMA) improves on traditional moving averages by combining the Weighted Moving Average's (WMA) smoothness and reduced lag. Its core calculation involves taking the WMA of the data set and doubling it, then subtracting the WMA of the full period, followed by applying another WMA on the result over the square root of the period's length. This methodology yields a smoother and more responsive moving average, particularly useful for identifying market trends more rapidly. 3. Combining Kalman Filter with HMA The innovative combination of the Kalman Filter with the Hull Moving Average (KHMA) offers a unique approach to smoothing price data. By applying the Kalman Filter to the price source before its incorporation into the HMA formula, we enhance the adaptiveness and responsiveness of the moving average. This adaptive smoothing method reduces noise more effectively and adjusts more swiftly to price changes, providing traders with clearer signals for market entries or exits. The calculation is like so: KHMA(_src, _length) => f_kalman(2 * f_kalman(_src, _length / 2) - f_kalman(_src, _length), math.round(math.sqrt(_length))) Use Case The Kalman Hull RSI is particularly suited for traders who require a highly adaptive indicator that can respond to rapid market changes without the excessive noise associated with typical RSI calculations. It can be effectively used in markets with high volatility where traditional indicators might lag or produce misleading signals. Application in a Trading System The Kalman Hull RSI is versatile in application, suitable for: Trend Identification: Quickly identify potential reversals or confirmations of existing trends. Overbought/Oversold Conditions: Utilize the dynamic RSI thresholds to pinpoint potential entry and exit points, adapting to current market conditions. Risk Management: Enhance trading strategies by integrating a more reliable measure of momentum, which can lead to improved stop-loss placements and exit strategies. Core Calculations and Benefits Dynamic State Estimation: By applying the Kalman Filter, the indicator continually adjusts its calculations based on incoming price data, providing a real-time, smoothed response to price movements. Reduced Lag: The integration with HMA significantly reduces lag, offering quicker responses to price changes than traditional moving averages or RSI alone. Increased Accuracy: The dual filtering effect minimizes the impact of price spikes and noise, leading to more accurate signaling for trades. Thus following all of the key points here are some sample backtests on the 1D Chart Disclaimer: Backtests are based off past results, and are not indicative of the future. INDEX:BTCUSD INDEX:ETHUSD BINANCE:SOLUSD
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BackQuantの投稿
1
Kalman Filter Volume Bands by TenozenHello there! I am excited to introduce a new original indicator, the Kalman Filter Volume Bands. This indicator is calculated using the Kalman Filter, which is an adaptive-based smoothing quantitative tool. The Kalman Filter Volume Bands have two components that support the calculation, namely VWAP and VaR. VWAP is used to determine the weight of the Kalman Filter Returns, but it doesn't have a significant impact on the calculation. On the other hand, VaR or Value at risk is calculated using the 99th percentile, which means that there is a 1% chance for the returns to exceed the 99th percentile level. After getting the VaR value, I manually adjust the bands based on the current market I'm trading on. I take the highest point (VaR*2) and the lowest point (-(VaR*2)) from the Kalman Filter, and then divide them into segments manually based on my preference. This process results in 8 segments, where 2 segments near the Kalman Filter are further divided, making a total of 12 segments. These segments classify the current state of the price based on code-based coloring. The five states are very bullish, bullish, very bearish, bearish, and neutral. I created this indicator to have an adaptive band that is not biased toward the volatility of the market. Most band-based indicators don't capture reversals that well, but the Kalman Filter Volume Bands can capture both trends and reversals. This makes it suitable for both trend-following and reversal trading approaches. That's all for the explanation! Ciao! Additional Reminder: - Please use hourly timeframes or higher as lower timeframes are too noisy for reliable readings of this indicator.
Pine Script® インジケーター
Tenozenの投稿
11
Kalman Price Filter [BackQuant]Kalman Price Filter The Kalman Filter, named after Rudolf E. Kálmán, is a algorithm used for estimating the state of a linear dynamic system from a series of noisy measurements. Originally developed for aerospace applications in the early 1960s, such as guiding Apollo spacecraft to the moon, it has since been applied across numerous fields including robotics, economics, and, notably, financial markets. Its ability to efficiently process noisy data in real-time and adapt to new measurements has made it a valuable tool in these areas. Use Cases in Financial Markets 1. Trend Identification: The Kalman Filter can smooth out market price data, helping to identify the underlying trend amidst the noise. This is particularly useful in algorithmic trading, where identifying the direction and strength of a trend can inform trade entry and exit decisions. 2. Market Prediction: While no filter can predict the future with certainty, the Kalman Filter can be used to forecast short-term market movements based on current and historical data. It does this by estimating the current state of the market (e.g., the "true" price) and projecting it forward under certain model assumptions. 3. Risk Management: The Kalman Filter's ability to estimate the volatility (or noise) of the market can be used for risk management. By dynamically adjusting to changes in market conditions, it can help traders adjust their position sizes and stop-loss orders to better manage risk. 4. Pair Trading and Arbitrage: In pair trading, where the goal is to capitalize on the price difference between two correlated securities, the Kalman Filter can be used to estimate the spread between the pair and identify when the spread deviates significantly from its historical average, indicating a trading opportunity. 5. Optimal Asset Allocation: The filter can also be applied in portfolio management to dynamically adjust the weights of different assets in a portfolio based on their estimated risks and returns, optimizing the portfolio's performance over time. Advantages in Financial Applications Adaptability: The Kalman Filter continuously updates its estimates with each new data point, making it well-suited to markets that are constantly changing. Efficiency: It processes data and updates estimates in real-time, which is crucial for high-frequency trading strategies. Handling Noise: Its ability to distinguish between the signal (e.g., the true price trend) and noise (e.g., random fluctuations) is particularly valuable in financial markets, where price data can be highly volatile. Challenges and Considerations Model Assumptions: The effectiveness of the Kalman Filter in financial applications depends on the accuracy of the model used to describe market dynamics. Financial markets are complex and influenced by numerous factors, making model selection critical. Parameter Sensitivity: The filter's performance can be sensitive to the choice of parameters, such as the process and measurement noise values. These need to be carefully selected and potentially adjusted over time. Despite these challenges, the Kalman Filter remains a potent tool in the quantitative trader's arsenal, offering a sophisticated method to extract useful information from noisy financial data. Its use in trading strategies should, however, be complemented with sound risk management practices and an awareness of the limitations inherent in any model-based approach to trading.
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BackQuantの投稿
13
Kalman Filter by TenozenAnother useful indicator is here! Kalman Filter is a quantitative tool created by Rudolf E. Kalman. In the case of trading, it can help smooth out the price data that traders observe, making it easier to identify underlying trends. The Kalman Filter is particularly useful for handling price data that is noisy and unpredictable. As an adaptive-based algorithm, it can easily adjust to new data, which makes it a handy tool for traders operating in markets that are prone to change quickly. Many people may assume that the Kalman Filter is the same as a Moving Average, but that is not the case. While both tools aim to smooth data and find trends, they serve different purposes and have their own sets of advantages and disadvantages. The Kalman Filter provides a more dynamic and adaptive approach, making it suitable for real-time analysis and predictive capabilities, but it is also more complex. On the other hand, Moving Averages offer a simpler and more intuitive way to visualize trends, which makes them a popular choice among traders for technical analysis. However, the Moving Average is a lagging indicator and less adaptive to market change, if it's adjusted it may result in overfitting. In this case, the Kalman Filter would be a better choice for smoothing the price up. I hope you find this indicator useful! It's been an exciting and extensive journey since I began diving into the world of finance and trading. I'll keep you all updated on any new indicators I discover that could benefit the community in the future. Until then, take care, and happy trading! Ciao.
Pine Script® インジケーター
Tenozenの投稿
7