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[UTILS] Unit Testing FrameworkTL;DR This script doesn't provide any buy/sell signals. This script won't make you profitable implicitly. This script is intended for utility function testing, library testing, custom assertions. It is free and open-source. Introduction About the idea: is not exclusive, programmers tend to use this method a lot and for a long time. The point is to ensure that parts of a software, "units" (i.e modules, functions, procedures, class methods etc), work as they should, meet they design and behave as intended. That's why we use the term "Unit testing". In PineScript we don't have a lot of entities mentioned above yet. What we have are functions. For example, a function that sums numbers should return a number, a particular sum. Or a professor wrote a function that calculates something or whatever. He and you want to be sure that the function works as expected and further code changes (refactoring) won't break its behaviour. What the professor needs to do is to write unit tests for his function/library of functions. And what you need to do is to check if the professor wrote tests or not. No tests = No code - Total test-driven development Ok, it is not so serious, but very important in software development. And I created a tool for that. I tried to follow the APIs of testing tools/libs/frameworks I worked or work with: Jasmine (Javascript), Mocha/Chai (Javascript), Jest (Javascript), RSpec (Ruby), unittest (Python), pytest (Python) and others. Got something workable but it would be much easier to implement (and it would look much better) if PineScript had a higher-order functions feature. API _describe(suiteName: string) A function to declare a test suite. Each suite with tests may have 2 statuses: ✔️ Passed ❌ Failed A suite is considered to be failed if at least one of the specs in it has failed. _it(specName: string, actual: any, expected: any) A function to run a test. Each test may have 3 statuses: ✔️ Passed ❌ Failed ⛔ Skipped Some examples: _it("is a falsey value", 1 != 2, true) _it("is not a number", na(something), true) _it("should sum two integers", _sum(1, 2), 1) _it("arrays are equal", _isEqual(array.from(1, 2), array.from(1, 2)), true) Remember that both the 'actual' and 'expected' arguments must be of the same type. And a group of _it() functions must be preceded by a _describe() declaration (see in the code). _test(specName: string, actual: any, expected: any) An alias for _it . Does the same thing. _xit(specName: string, actual: any, expected: any) A function to skip a particular test for a while. Doesn't make any comparisons, but the test will appear in the results as skipped. This feature is unstable and may be removed in the future releases. _xtest(specName: string, actual: any, expected: any) An alias for _xit . Does the same thing. _isEqual(id_1: array, id_2: array) A function to compare two arrays for equality. Both arrays must be of the same type. This function doesn't take into account the order of elements in each array. So arrays like (1, 2, 3) and (3, 2, 1) will be equal. _isStrictEqual(id_1: array, id_2: array) A function to compare two arrays for equality. Both arrays must be of the same type. This function is a stricter version of _isEqual because it takes into account the order of elements in each array. So arrays like (1, 2, 3) and (3, 2, 1) won't be equal. Usage To use this script to test your library you need to do the following steps: 1) Copy all the code you see between line #5 and #282 (Unit Testing Framework Core) 2) Place the copied code at the very beginning of your script (but below study()) 3) Start to write suites and tests where your code ends. That's it. NOTE The current version is 0.0.1 which means that a lot of things may be changed on the way to 1.0.0 - the first stable version.
Pineスクリプト™ インジケーター
evergetの投稿
8
Weighted Harrell-Davis Quantile Estimator with AbsoluteDeviation QUANTILE ESTIMATORS Weighted Harrell-Davis Quantile Estimator with Absolute Deviation Fences. DISCLAIMER: The Following indicator/code IS NOT intended to be a formal investment advice or recommendation by the author, nor should be construed as such. Users will be fully responsible by their use regarding their own trading vehicles/assets. The following indicator was made for NON LUCRATIVE ACTIVITIES and must remain as is, following TradingView's regulations. Use of indicator and their code are published for work and knowledge sharing. All access granted over it, their use, copy or re-use should mention authorship(s) and origin(s). WARNING NOTICE! THE INCLUDED FUNCTION MUST BE CONSIDERED FOR TESTING. The models included in the indicator have been taken from open sources on the web and some of them has been modified by the author, problems could occur at diverse data sceneries, compiler version, or any other externality. Purpose: Weighted Quantiles or <> are quite difficult to find on must systems, also it's non-weighted approach are rarely used to estimate the location parameter of price distribution WICH IS NOT NORMAL, all this in favour of it's non-robust counterpart, the Arithmetic rolling Mean or <> and it's weighted variants like the WMA, VWAP, etc. Also, a big drawback from this is that must statistics derived from Normal-Distribution parameter location (the Mean) definitely will not fit for an efficient, nor robust estimation for price distributions, so their moments like the standard deviation, kurtosis, skewness, etc. will not be the better tools to build derived algorithms or technical indicators among price/volume. In an effort searching better statistical tools for price distributions, I found the excellent work of Andrey Akinshin that took me to port some of their Math research contributions for the compute benchmarking field , and bring it here at the TradingView ecosystem to take a shot at the price distribution crazy fields. For a better detail of what the weighted Harrell-Davis Quantile Estimator can do, who better than drink directly from the source at References: References: Weighted Quantile Estimators. DoubleMAD outlier detector based on the Harrell-Davis quantile estimator. Unbiased median absolute deviation based on the Harrell-Davis quantile estimator. Quantile confidence intervals for weighted samples. Licensing: This work is licensed under a Attribution-NonCommercial-ShareAlike 4.0 International Copyright (c) 2021 (CC BY-NC-SA 4.0) Copyright's & Mentions: The Gamma Functions & Beta Probability Density Functions C# implementations by the Math.NET Numerics, part of the Math.NET Project. The Regularized Incomplete (Left) Beta Function C# implementation by the SAMTools, htslib project. The Weighted Harrell-Davis Quantile estimator ; C# & R implementations by Andrey Akinshin. External PineScript code, methods, support & consultancy by @PineCoders staff with special mention for: + "ma sorter ('sort by array' example)- JD" by @Duyck. + Porting, mods, compilation and debugging for this script by @XeL_Arjona for the TradingView's @PineCoders community.
Pineスクリプト™ インジケーター
xel_arjonaの投稿
38
Pinescript - Common Label & Line Array Functions Library by RRBPinescript - Common Label & Line Array Functions Library by RagingRocketBull 2021 Version 1.0 This script provides a library of common array functions for arrays of label and line objects with live testing of all functions. Using this library you can easily create, update, delete, join label/line object arrays, and get/set properties of individual label/line object array items. You can find the full list of supported label/line array functions below. There are several libraries: - Common String Functions Library - Standard Array Functions Library - Common Fixed Type Array Functions Library - Common Label & Line Array Functions Library - Common Variable Type Array Functions Library Features: - 30 array functions in categories create/update/delete/join/get/set with support for both label/line objects (45+ including all implementations) - Create, Update label/line object arrays from list/array params - GET/SET properties of individual label/line array items by index - Join label/line objects/arrays into a single string for output - Supports User Input of x,y coords of 5 different types: abs/rel/rel%/inc/inc% list/array, auto transforms x,y input into list/array based on type, base and xloc, translates rel into abs bar indexes - Supports User Input of lists with shortened names of string properties, auto expands all standard string properties to their full names for use in functions - Live Output for all/selected functions based on User Input. Test any function for possible errors you may encounter before using in script. - Output filters: hide all excluded and show only allowed functions using a list of function names - Output Panel customization options: set custom style, color, text size, and line spacing Usage: - select create function - create label/line arrays from lists or arrays (optional). Doesn't affect the update functions. The only change in output should be function name regardless of the selected implementation. - specify num_objects for both label/line arrays (default is 7) - specify common anchor point settings x,y base/type for both label/line arrays and GET/SET items in Common Settings - fill lists with items to use as inputs for create label/line array functions in Create Label/Line Arrays section - specify label/line array item index and properties to SET in corresponding sections - select label/line SET function to see the changes applied live Code Structure: - translate x,y depending on x,y type, base and xloc as specified in UI (required for all functions) - expand all shortened standard property names to full names (required for create/update* from arrays and set* functions, not needed for create/update* from lists) to prevent errors in label.new and line.new - create param arrays from string lists (required for create/update* from arrays and set* functions, not needed for create/update* from lists) - create label/line array from string lists (property names are auto expanded) or param arrays (requires already expanded properties) - update entire label/line array or - get/set label/line array item properties by index Transforming/Expanding Input values: - for this script to work on any chart regardless of price/scale, all x*,y* are specified as % increase relative to x0,y0 base levels by default, but user can enter abs x,price values specific for that chart if necessary. - all lists can be empty, contain 1 or several items, have the same/different lengths. Array Length = min(min(len(list*)), mum_objects) is used to create label/line objects. Missing list items are replaced with default property values. - when a list contains only 1 item it is duplicated (label name/tooltip is also auto incremented) to match the calculated Array Length - since this script processes user input, all x,y values must be translated to abs bar indexes before passing them to functions. Your script may provide all data internally and doesn't require this step. - at first int x, float y arrays are created from user string lists, transformed as described below and returned as x,y arrays. - translated x,y arrays can then be passed to create from arrays function or can be converted back to x,y string lists for the create from lists function if necessary. - all translation logic is separated from create/update/set functions for the following reasons: - to avoid redundant code/dependency on ext functions/reduce local scopes and to be able to translate everything only once in one place - should be faster - to simplify internal logic of all functions - because your script may provide all data internally without user input and won't need the translation step - there are 5 types available for both x,y: abs, rel, rel%, inc, inc%. In addition to that, x can be: bar index or time, y is always price. - abs - absolute bar index/time from start bar0 (x) or price (y) from 0, is >= 0 - rel - relative bar index/time from cur bar n (x) or price from y0 base level, is >= 0 - rel% - relative % increase of bar index/time (x) or price (y) from corresponding base level (x0 or y0), can be <=> 0 - inc - relative increment (step) for each new level of bar index/time (x) or price (y) from corresponding base level (x0 or y0), can be <=> 0 - inc% - relative % increment (% step) for each new level of bar index/time (x) or price (y) from corresponding base level (x0 or y0), can be <=> 0 - x base level >= 0 - y base level can be 0 (empty) or open, close, high, low of cur bar - single item x1_list = "50" translates into: - for x type abs: "50, 50, 50 ..." num_objects times regardless of xloc => x = 50 - for x type rel: "50, 50, 50 ... " num_objects times => x = x_base + 50 - for x type rel%: "50%, 50%, 50% ... " num_objects times => x_base * (1 + 0.5) - for x type inc: "0, 50, 100 ... " num_objects times => x_base + 50 * i - for x type inc%: "0%, 50%, 100% ... " num_objects times => x_base * (1 + 0.5 * i) - when xloc = xloc.bar_index each rel*/inc* value in the above list is then subtracted from n: n - x to convert rel to abs bar index, values of abs type are not affected - x1_list = "0, 50, 100, ..." of type rel is the same as "50" of type inc - x1_list = "50, 50, 50, ..." of type abs/rel/rel% produces a sequence of the same values and can be shortened to just "50" - single item y1_list = "2" translates into (ragardless of yloc): - for y type abs: "2, 2, 2 ..." num_objects times => y = 2 - for y type rel: "2, 2, 2 ... " num_objects times => y = y_base + 2 - for y type rel%: "2%, 2%, 2% ... " num_objects times => y = y_base * (1 + 0.02) - for y type inc: "0, 2, 4 ... " num_objects times => y = y_base + 2 * i - for y type inc%: "0%, 2%, 4% ... " num_objects times => y = y_base * (1 + 0.02 * i) - when yloc != yloc.price all calculated values above are simply ignored - y1_list = "0, 2, 4" of type rel% is the same as "2" with type inc% - y1_list = "2, 2, 2" of type abs/rel/rel% produces a sequence of the same values and can be shortened to just "2" - you can enter shortened property names in lists. To lookup supported shortened names use corresponding dropdowns in Set Label/Line Array Item Properties sections - all shortened standard property names must be expanded to full names (required for create/update* from arrays and set* functions, not needed for create/update* from lists) to prevent errors in label.new and line.new - examples of shortened property names that can be used in lists: bar_index, large, solid, label_right, white, left, left, price - expanded to their corresponding full names: xloc.bar_index, size.large, line.style_solid, label.style_label_right, color.white, text.align_left, extend.left, yloc.price - all expanding logic is separated from create/update* from arrays and set* functions for the same reasons as above, and because param arrays already have different types, implying the use of final values. - all expanding logic is included in the create/update* from lists functions because it seemed more natural to process string lists from user input directly inside the function, since they are already strings. Creating Label/Line Objects: - use study max_lines_count and max_labels_count params to increase the max number of label/line objects to 500 (+3) if necessary. Default number of label/line objects is 50 (+3) - all functions use standard param sequence from methods in reference, except style always comes before colors. - standard label/line.get* functions only return a few properties, you can't read style, color, width etc. - label.new(na, na, "") will still create a label with x = n-301, y = NaN, text = "" because max default scope for a var is 300 bars back. - there are 2 types of color na, label color requires color(na) instead of color_na to prevent error. text_color and line_color can be color_na - for line to be visible both x1, x2 ends must be visible on screen, also when y1 == y2 => abs(x1 - x2) >= 2 bars => line is visible - xloc.bar_index line uses abs x1, x2 indexes and can only be within 0 and n ends, where n <= 5000 bars (free accounts) or 10000 bars (paid accounts) limit, can't be plotted into the future - xloc.bar_time line uses abs x1, x2 times, can't go past bar0 time but can continue past cur bar time into the future, doesn't have a length limit in bars. - xloc.bar_time line with length = exact number of bars can be plotted only within bar0 and cur bar, can't be plotted into the future reliably because of future gaps due to sessions on some charts - xloc.bar_index line can't be created on bar 0 with fixed length value because there's only 1 bar of horiz length - it can be created on cur bar using fixed length x < n <= 5000 or - created on bar0 using na and then assigned final x* values on cur bar using set_x* - created on bar0 using n - fixed_length x and then updated on cur bar using set_x*, where n <= 5000 - default orientation of lines (for style_arrow* and extend) is from left to right (from bar 50 to bar 0), it reverses when x1 and x2 are swapped - price is a function, not a line object property Variable Type Arrays: - you can't create an if/function that returns var type value/array - compiler uses strict types and doesn't allow that - however you can assign array of any type to another array of any type creating an arr pointer of invalid type that must be reassigned to a matching array type before used in any expression to prevent error - create_any_array2 uses this loophole to return an int_arr pointer of a var type array - this works for all array types defined with/without var keyword and doesn't work for string arrays defined with var keyword for some reason - you can't do this with var type vars, only var type arrays because arrays are pointers passed by reference, while vars are actual values passed by value. - you can only pass a var type value/array param to a function if all functions inside support every type - otherwise error - alternatively values of every type must be passed simultaneously and processed separately by corresponding if branches/functions supporting these particular types returning a common single type result - get_var_types solves this problem by generating a list of dummy values of every possible type including the source type, tricking the compiler into allowing a single valid branch to execute without error, while ignoring all dummy results Notes: - uses Pinescript v3 Compatibility Framework - uses Common String Functions Library, Common Fixed Type Array Functions Library, Common Variable Type Array Functions Library - has to be a separate script to reduce the number of local scopes/compiled file size, can't be merged with another library. - lets you live test all label/line array functions for errors. If you see an error - change params in UI - if you see "Loop too long" error - hide/unhide or reattach the script - if you see "Chart references too many candles" error - change x type or value between abs/rel*. This can happen on charts with 5000+ bars when a rel bar index x is passed to label.new or line.new instead of abs bar index n - x - create/update_label/line_array* use string lists, while create/update_label/line_array_from_arrays* use array params to create label/line arrays. "from_lists" is dropped to shorten the names of the most commonly used functions. - create_label/line_array2,4 are preferable, 5,6 are listed for pure demonstration purposes only - don't use them, they don't improve anything but dramatically increase local scopes/compiled file size - for this reason you would mainly be using create/update_label/line_array2,4 for list params or create/update_label/line_array_from_arrays2 for array params - all update functions are executed after each create as proof of work and can be disabled. Only create functions are required. Use update functions when necessary - when list/array params are changed by your script. - both lists and array item properties use the same x,y_type, x,y_base from common settings - doesn't use pagination, a single str contains all output - why is this so complicated? What are all these functions for? - this script merges standard label/line object methods with standard array functions to create a powerful set of label/line object array functions to simplify manipulation of these arrays. - this library also extends the functionality of Common Variable Type Array Functions Library providing support for label/line types in var type array functions (any_to_str6, join_any_array5) - creating arrays from either lists or arrays adds a level of flexibility that comes with complexity. It's very likely that in your script you'd have to deal with both string lists as input, and arrays internally, once everything is converted. - processing user input, allowing customization and targeting for any chart adds a whole new layer of complexity, all inputs must be translated and expanded before used in functions. - different function implementations can increase/reduce local scopes and compiled file size. Select a version that best suits your needs. Creating complex scripts often requires rewriting your code multiple times to fit the limits, every line matters. P.S. Don't rely too much on labels, for too often they are fables. List of functions*: * - functions from other libraries are not listed 1. Join Functions Labels - join_label_object(label_, d1, d2) - join_label_array(arr, d1, d2) - join_label_array2(arr, d1, d2, d3) Lines - join_line_object(line_, d1, d2) - join_line_array(arr, d1, d2) - join_line_array2(arr, d1, d2, d3) Any Type - any_to_str6(arr, index, type) - join_any_array4(arr, d1, d2, type) - join_any_array5(arr, d, type) 2. GET/SET Functions Labels - label_array_get_text(arr, index) - label_array_get_xy(arr, index) - label_array_get_fields(arr, index) - label_array_set_text(arr, index, str) - label_array_set_xy(arr, index, x, y) - label_array_set_fields(arr, index, x, y, str) - label_array_set_all_fields(arr, index, x, y, str, xloc, yloc, label_style, label_color, text_color, text_size, text_align, tooltip) - label_array_set_all_fields2(arr, index, x, y, str, xloc, yloc, label_style, label_color, text_color, text_size, text_align, tooltip) Lines - line_array_get_price(arr, index, bar) - line_array_get_xy(arr, index) - line_array_get_fields(arr, index) - line_array_set_text(arr, index, width) - line_array_set_xy(arr, index, x1, y1, x2, y2) - line_array_set_fields(arr, index, x1, y1, x2, y2, width) - line_array_set_all_fields(arr, index, x1, y1, x2, y2, xloc, extend, line_style, line_color, width) - line_array_set_all_fields2(arr, index, x1, y1, x2, y2, xloc, extend, line_style, line_color, width) 3. Create/Update/Delete Functions Labels - delete_label_array(label_arr) - create_label_array(list1, list2, list3, list4, list5, d) - create_label_array2(x_list, y_list, str_list, xloc_list, yloc_list, style_list, color1_list, color2_list, size_list, align_list, tooltip_list, d) - create_label_array3(x_list, y_list, str_list, xloc_list, yloc_list, style_list, color1_list, color2_list, size_list, align_list, tooltip_list, d) - create_label_array4(x_list, y_list, str_list, xloc_list, yloc_list, style_list, color1_list, color2_list, size_list, align_list, tooltip_list, d) - create_label_array5(x_list, y_list, str_list, xloc_list, yloc_list, style_list, color1_list, color2_list, size_list, align_list, tooltip_list, d) - create_label_array6(x_list, y_list, str_list, xloc_list, yloc_list, style_list, color1_list, color2_list, size_list, align_list, tooltip_list, d) - update_label_array2(label_arr, x_list, y_list, str_list, xloc_list, yloc_list, style_list, color1_list, color2_list, size_list, align_list, tooltip_list, d) - update_label_array4(label_arr, x_list, y_list, str_list, xloc_list, yloc_list, style_list, color1_list, color2_list, size_list, align_list, tooltip_list, d) - create_label_array_from_arrays2(x_arr, y_arr, str_arr, xloc_arr, yloc_arr, style_arr, color1_arr, color2_arr, size_arr, align_arr, tooltip_arr, d) - create_label_array_from_arrays4(x_arr, y_arr, str_arr, xloc_arr, yloc_arr, style_arr, color1_arr, color2_arr, size_arr, align_arr, tooltip_arr, d) - update_label_array_from_arrays2(label_arr, x_arr, y_arr, str_arr, xloc_arr, yloc_arr, style_arr, color1_arr, color2_arr, size_arr, align_arr, tooltip_arr, d) Lines - delete_line_array(line_arr) - create_line_array(list1, list2, list3, list4, list5, list6, d) - create_line_array2(x1_list, y1_list, x2_list, y2_list, xloc_list, extend_list, style_list, color_list, width_list, d) - create_line_array3(x1_list, y1_list, x2_list, y2_list, xloc_list, extend_list, style_list, color_list, width_list, d) - create_line_array4(x1_list, y1_list, x2_list, y2_list, xloc_list, extend_list, style_list, color_list, width_list, d) - create_line_array5(x1_list, y1_list, x2_list, y2_list, xloc_list, extend_list, style_list, color_list, width_list, d) - create_line_array6(x1_list, y1_list, x2_list, y2_list, xloc_list, extend_list, style_list, color_list, width_list, d) - update_line_array2(line_arr, x1_list, y1_list, x2_list, y2_list, xloc_list, extend_list, style_list, color_list, width_list, d) - update_line_array4(line_arr, x1_list, y1_list, x2_list, y2_list, xloc_list, extend_list, style_list, color_list, width_list, d) - create_line_array_from_arrays2(x1_arr, y1_arr, x2_arr, y2_arr, xloc_arr, extend_arr, style_arr, color_arr, width_arr, d) - update_line_array_from_arrays2(line_arr, x1_arr, y1_arr, x2_arr, y2_arr, xloc_arr, extend_arr, style_arr, color_arr, width_arr, d)
Pineスクリプト™ インジケーター
RagingRocketBullの投稿
13
Pinescript - Standard Array Functions Library by RRBStandard Array Functions Library by RagingRocketBull 2021 Version 1.0 This script provides a library of every standard Pinescript array function for live testing with all supported array types. You can find the full list of supported standard array functions below. There are several libraries: - Common String Functions Library - Common Array Functions Library - Standard Array Functions Library Features: - Supports all standard array functions (30+) with all possible array types* (* - except array.new* functions and label, line array types) - Live Output for all/selected functions based on User Input. Test any function for possible errors you may encounter before using in script. - Output filters: show errors, hide all excluded and show only allowed functions using a list of function names - Console customization options: set custom text size, color, page length, line spacing Notes: - uses Pinescript v3 Compatibility Framework - uses Common String Functions Library - has to be a separate script to reduce the number of local scopes in Common Array Function Library, there's no way to merge these scripts into a single library. - lets you live test all standard array functions for errors. If you see an error - change params in UI - array types that are not supported by certain functions and producing a compilation error were disabled with "error" showing up as result - if you see "Loop too long" error - hide/unhide or reattach the script - doesn't use pagination, a single str contains all output - for most array functions to work (except push), an array must be defined with at least 1 pre-existing dummy element 0. - array.slice and array.fill require from_index < to_index otherwise error - array.join only supports string arrays, and delimiter must be a const string, can't be var/input. Use join_any_array to join any array type into string. You can also use tostring() to join int, float arrays. - array.sort only supports int, float arrays. Use sort_any_array from the Common Array Function Library to sort any array type. - array.sort only sorts values, doesn't preserve indexes. Use sort_any_array from the Common Array Function Library to sort any array while preserving indexes. - array.concat appends string arrays in reverse order, other array types are appended correctly - array.covariance requires 2 int, float arrays of the same size - tostring(flag) works only for internal bool vars, flag expression can't depend on any inputs of any type, use bool_to_str instead - you can't create an if/function that returns var type value/array - compiler uses strict types and doesn't allow that - however you can assign array of any type to another array of any type creating an arr pointer of invalid type that must be reassigned to a matching array type before used in any expression to prevent error - source_array and create_any_array2 use this loophole to return an int_arr pointer of a var type array - this works for all array types defined with/without var keyword. This doesn't work for string arrays defined with var keyword for some reason - you can't do this with var type vars, this can be done only with var type arrays because they are pointers passed by reference, while vars are the actual values passed by value. - wrapper functions solve the problem of returning var array types. This is the only way of doing it when the top level arr type is undefined. - you can only pass a var type value/array param to a function if all functions inside support every type - otherwise error - alternatively values of every type must be passed simultaneously and processed separately by corresponding if branches/functions supporting these particular types returning a common single result type - get_var_types solves this problem by generating a list of dummy values of every possible type including the source type, allowing a single valid branch to execute without error - examples of functions supporting all array types: array.size, array.get, array.push. Examples of functions with limited type support: array.sort, array.join, array.max, tostring - unlike var params/global vars, you can modify array params and global arrays directly from inside functions using standard array functions, but you can't use := (it only works for local arrays) - inside function always work with array.copy to prevent accidental array modification - you can't compare arrays - there's no na equivalent for arrays, na(arr) doesn't work P.S. A wide array of skills calls for an even wider array of responsibilities List of functions: - array.avg(arr) - array.clear(arr) - array.concat(arr1, arr2) - array.copy(arr) - array.covariance(arr1, arr2) - array.fill(arr, value, index_from, index_to) - array.get(arr, index) - array.includes(arr, value) - array.indexof(arr, value) - array.insert(arr, index, value) - array.join(arr, delimiter) - array.lastindexof(arr, value) - array.max(arr) - array.median(arr) - array.min(arr) - array.mode(arr) - array.pop(arr) - array.push(arr, value) - array.range(arr) - array.remove(arr, index) - array.reverse(arr) - array.set(arr, index, value) - array.shift(arr) - array.size(arr) - array.slice(arr, index_from, index_to) - array.sort(arr, order) - array.standardize() - array.stdev(arr) - array.sum(arr) - array.unshift(arr, value) - array.variance(arr)
Pineスクリプト™ インジケーター
RagingRocketBullの投稿
2
Pinescript - Common String Functions Library by RRBCommon String Functions Library by RagingRocketBull 2021 Version 1.0 Pinescript now has strong support for arrays with many powerful functions, but still lacks built-in string functions. Luckily you can easily process and manipulate strings using arrays. This script provides a library of common string functions for everyday use, such as: indexOf, substr, replace, ascii_code, str_to_int etc. There are 100+ unique functions (130 including all implementations) It should serve as building blocks to speed up the development of your custom scripts. You should also be able to learn how Pinescript arrays works and how you can process strings. Similar libraries for Array and Statistical Functions are in the works. You can find the full list of functions below. Features: - 100+ unique string functions (130 including all implementations) in categories: lookup, testing, conversion, modification, extraction, type conversion, date and time, console output - Live Output for all/selected functions based on User Input. Test any function before using in script. - Live Unit Test Output for several functions based on pre-defined inputs. - Output filters: show unique functions/all implementations, grouping - Console customization options: set custom text size, color, page length - Support for Pages - auto splits output into pages with fixed length, use pages in your scripts - Several easy to use console output functions to speed up debugging/output. WARNING: - Compilation Time: 1 min Notes: - uses Pinescript v3 Compatibility Framework - this script is packed to the max and sets a new record in testing of Pinescript's limits: 500 local scopes, 4000+ lines, 180kb+ source size. It's not possible to add more ifs/fors/functions without reducing functionality - to fit the max limit of local scopes = 500 all ifs were replaced with ?: where possible, the number of function calls was reduced, some calls replaced with inline function code - ifs are faster (especially when lots of them are used in a for cycle), more readable, but ifs/fors/functions increase local scopes (+1) and compiled file size, have max nesting limit = 10. - ?: are slower (especially in for cycles), hard to read when nested, don't affect local scopes, reduce compiled file size, can't contain plots, for statements (break/continue) and sets of statements - for most array functions to work (except push), an array must be defined with at least 1 pre-existing dummy element 0. - if you see "String too long" error - enable Show Pages, reduce Max Chars Per Page < Max String Length limit = 4096. - if you see "Loop too long" error - hide/unhide or reattach the script - some functions have several implementations that can be faster/slower, use internal code/ext functions - 1 is manual string processing using for cycles (array.get) and ext functions - provided in case you want to implement your own logic, may sometimes be slower - 2 is a 2nd alternate implementation mostly done using built-in functions (array.indexof, array.slice, array.insert, array.remove, str.replace_all), attempts to minimize local scopes and dependency on ext functions, should generally be faster - 3 is a 3rd alternate (array.includes, array.fill) or a more advanced implementation (datetime3_str) with lots of params, giving you the most control over output - most functions have dependencies, such as const names, global arrays, inputs, other functions. P.S. Strings of Time may be closed unto themselves or have loose ends; they can vibrate, stretch, join or split. Function Groups: 1. Char Functions - repeat(str, num) - ascii_char(code) - ascii_code(char) - is_digit(char) - is_letter(char) - digit_to_int(char) - is_space_char(char) 2. Char Test and Lookup Functions - char_at(str, pos) - char_code_at(str, pos) - indexOf_char(str, char) - lastIndexOf_char(str, char) - nth_indexOf_char(str, char, num) - includes_char(str, char) 3. String Lookup Functions - indexOf(str, target) - lastIndexOf(str, target) - nth_indexOf(str, target, num) - indexesOf(str, target) - numIndexesOf(str, target) 4. String Conversion Functions - lowercase(str) - uppercase(str) 5. String Modification and Extraction Functions - split(str, separator) - insert(str, pos, new_str) - remove(str, pos, length) - insert_char(str, pos, char) - remove_char(str, pos) - reverse(str) - fill_char(str, char, start_pos, end_pos) - replace(str, target, new_str) - replace_first(str, target, new_str) - replace_last(str, target, new_str) - replace_nth(str, target, new_str, num) - replace_left(str, new_str) - replace_right(str, new_str) - replace_middle(str, pos, new_str) - left(str, num) - right(str, num) - first_char(str) - last_char(str) - truncate(str, max_len) - truncate_middle2(str, trunc_str, pos, max_len) - truncate_from2(str, trunc_str, pos, max_len, side) - concat(str1, str2, trunc_str, max_len, mode) - concat_from(str1, str2, trunc_str, max_len, side, mode) - trim(str) - substr(str, pos, length) - substring(str, start_pos, end_pos) - strip(str, mask, target, is_allowed) - extract_groups(str) - extract_numbers(str, d1, d2, mode) - str_to_float(str, d1, d2) - str_to_int(str) - extract_ranges(str, d1, d2, d3, type) 6. String Test Functions - includes(str, target) - starts_with(str, target) - ends_with(str, target) - str_compare(str1, str2) 7. Type Conversion Functions - tf_check2(tf) - tf_to_mins() - convert_tf(tf) - period_to_mins(tf) - convert_tf2(tf) - convert_tf3(tf) - bool_to_str(flag) - get_src(src_str) - get_size(size_str) - get_style(style) - get_bool(bool_str) - get_int(str) - get_float(str, d1, d2) - get_color(str, def_color) - color_tr2(col_str, transp) - get_month(str) - month_name(num, format) - weekday_name(num, format) - dayofweek_name(t) 8. Date and Time Functions - date_str(t, d) - time_str(t, d) - datetime_str(t, d1, d2) - date2_str(t, d, type) - time2_str(t, d, type) - datetime2_str(t, d1, d2, format1, format2) - date3_str(t, template) - time3_str(t, template) - datetime3_str(t, template) 9. Console Output & Helper Functions - echo1(con, str) - echo2(x, y, con, str) - echo3(v_shift, con, str, msg_color, text_size) - echo4(x, y, con, str, msg_style, msg_color, text_size, text_align, msg_xloc) - echo5(x, y, con, str, msg_style, msg_color, text_size, text_align, msg_xloc) - echo6(x, y, con, str) - echo7(v_shift, con, str, msg_color, text_size) - echo8(x, y, con, str, msg_style, msg_color, text_size, text_align, msg_xloc) - echo9(x, y, con, str, msg_style, msg_color, text_size, text_align, msg_xloc) - new_page(str, line_str, trunc_str, header_str, footer_str, length, page_count, page, mode)
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RagingRocketBullの投稿
17