Bollinger Bands TBB

5 日前

//version=6
indicator(shorttitle="BB TBB", title="Bollinger Bands TBB", overlay=true, timeframe="", timeframe_gaps=true)
length = input.int(20, minval=1)
maType = input.string("SMA", "Basis MA Type", options = ["SMA", "EMA", "SMMA (RMA)", "WMA", "VWMA"])
src = input(close, title="Source")
mult = input.float(2.0, minval=0.001, maxval=50, title="StdDev")

ma(source, length, _type) =>
switch _type
"SMA" => ta.sma(source, length)
"EMA" => ta.ema(source, length)
"SMMA (RMA)" => ta.rma(source, length)
"WMA" => ta.wma(source, length)
"VWMA" => ta.vwma(source, length)

basis = ma(src, length, maType)
dev = mult * ta.stdev(src, length)
upper = basis + dev
lower = basis - dev
offset = input.int(0, "Offset", minval = -500, maxval = 500, display = display.data_window)
plot(basis, "Mid", color=color.rgb(0, 0, 0), linewidth = 2, offset = offset)
p1 = plot(upper, "Upper", color=color.rgb(254, 254, 254), offset = offset)
p2 = plot(lower, "Lower", color=#ffffff, offset = offset)
fill(p1, p2, title = "Background", color=color.rgb(33, 150, 243, 95))

sma10 = plot(ta.sma(close, 10), color = #037f28, linewidth = 1, title = 'SMA10')
sma34 = plot(ta.sma(close, 34), color = color.rgb(30, 0, 255), linewidth = 2, title = 'SMA34')
sma200 = plot(ta.sma(close, 200), color = color.rgb(255, 69, 141, 100), linewidth = 2, title = 'SMA200')
ema100 = plot(ta.ema(close, 100), color = color.rgb(255, 255, 255, 100), linewidth = 1, title = 'EMA100')
ema200 = plot(ta.ema(close, 200), color = color.rgb(248, 3, 97), linewidth = 1, title = 'EMA200')

fill(ema100, ema200, title = "Major", color=color.rgb(255, 255, 255, 70))