Library "abstractchartpatterns" Library having abstract types and methods for chart pattern implementations
checkBarRatio(p1, p2, p3, properties) checks if three zigzag pivot points are having uniform bar ratios Parameters: p1 (chart.point): First pivot point p2 (chart.point): Second pivot point p3 (chart.point): Third pivot point properties (ScanProperties) Returns: true if points are having uniform bar ratio
getRatioDiff(p1, p2, p3) gets ratio difference between 3 pivot combinations Parameters: p1 (chart.point) p2 (chart.point) p3 (chart.point) Returns: returns the ratio difference between pivot2/pivot1 ratio and pivot3/pivot2 ratio
method inspect(points, stratingBar, endingBar, direction, ohlcArray) Creates a trend line between 2 or 3 points and validates and selects best combination Namespace types: chart.point[] Parameters: points (chart.point[]): Array of chart.point objects used for drawing trend line stratingBar (int): starting bar of the trend line endingBar (int): ending bar of the trend line direction (float): direction of the last pivot. Tells whether the line is joining upper pivots or the lower pivots ohlcArray (OHLC[] type from Trendoscope/ohlc/1): Array of OHLC values Returns: boolean flag indicating if the trend line is valid and the trend line object as tuple
method draw(this) draws pattern on the chart Namespace types: Pattern Parameters: this (Pattern): Pattern object that needs to be drawn Returns: Current Pattern object
method erase(this) erase the given pattern on the chart Namespace types: Pattern Parameters: this (Pattern): Pattern object that needs to be erased Returns: Current Pattern object
method push(this, p, maxItems) push Pattern object to the array by keeping maxItems limit Namespace types: Pattern[] Parameters: this (Pattern[]): array of Pattern objects p (Pattern): Pattern object to be added to array @oaram maxItems Max number of items the array can hold maxItems (int) Returns: Current Pattern array
method deepcopy(this) Perform deep copy of a chart point array Namespace types: chart.point[] Parameters: this (chart.point[]): array of chart.point objects Returns: deep copy array
DrawingProperties Object containing properties for pattern drawing Fields: patternLineWidth (series int): Line width of the pattern trend lines showZigzag (series bool): show zigzag associated with pattern zigzagLineWidth (series int): line width of the zigzag lines. Used only when showZigzag is set to true zigzagLineColor (series color): color of the zigzag lines. Used only when showZigzag is set to true showPatternLabel (series bool): display pattern label containing the name patternLabelSize (series string): size of the pattern label. Used only when showPatternLabel is set to true showPivotLabels (series bool): Display pivot labels of the patterns marking 1-6 pivotLabelSize (series string): size of the pivot label. Used only when showPivotLabels is set to true pivotLabelColor (series color): color of the pivot label outline. chart.bg_color or chart.fg_color are the appropriate values. deleteOnPop (series bool): delete the pattern when popping out from the array of Patterns.
Pattern Object containing Individual Pattern data Fields: points (chart.point[]) originalPoints (chart.point[]) trendLine1 (Line type from Trendoscope/LineWrapper/1): First trend line joining pivots 1, 3, 5 trendLine2 (Line type from Trendoscope/LineWrapper/1): Second trend line joining pivots 2, 4 (, 6) properties (DrawingProperties): DrawingProperties Object carrying common properties patternColor (series color): Individual pattern color. Lines and labels will be using this color. ratioDiff (series float): Difference between trendLine1 and trendLine2 ratios zigzagLine (series polyline): Internal zigzag line drawing Object pivotLabels (label[]): array containning Pivot labels patternLabel (series label): pattern label Object patternType (series int): integer representing the pattern type patternName (series string): Type of pattern in string
ScanProperties Object containing properties for pattern scanning Fields: offset (series int): Zigzag pivot offset. Set it to 1 for non repainting scan. numberOfPivots (series int): Number of pivots to be used in pattern search. Can be either 5 or 6 errorRatio (series float): Error Threshold to be considered for comparing the slope of lines flatRatio (series float): Retracement ratio threshold used to determine if the lines are flat checkBarRatio (series bool): Also check bar ratio are within the limits while scanning the patterns barRatioLimit (series float): Bar ratio limit used for checking the bars. Used only when checkBarRatio is set to true avoidOverlap (series bool): avoid overlapping patterns. allowedPatterns (bool[]): array of bool encoding the allowed pattern types. allowedLastPivotDirections (int[]): array of int representing allowed last pivot direction for each pattern types themeColors (color[]): color array of themes to be used.
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v2
Updated: Pattern Object containing Individual Pattern data Fields: dir (series int): direction of the last pivot points (chart.point[]) originalPoints (chart.point[]) trendLine1 (Line type from Trendoscope/LineWrapper/1): First trend line joining pivots 1, 3, 5 trendLine2 (Line type from Trendoscope/LineWrapper/1): Second trend line joining pivots 2, 4 (, 6) properties (DrawingProperties): DrawingProperties Object carrying common properties patternColor (series color): Individual pattern color. Lines and labels will be using this color. ratioDiff (series float): Difference between trendLine1 and trendLine2 ratios zigzagLine (series polyline): Internal zigzag line drawing Object pivotLabels (label[]): array containning Pivot labels patternLabel (series label): pattern label Object patternType (series int): integer representing the pattern type patternName (series string): Type of pattern in string
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v3
Updated: method inspect(points, stratingBar, endingBar, direction, ohlcArray) Creates a trend line between 2 or 3 points and validates and selects best combination Namespace types: chart.point[] Parameters: points (chart.point[]): Array of chart.point objects used for drawing trend line stratingBar (int): starting bar of the trend line endingBar (int): ending bar of the trend line direction (float): direction of the last pivot. Tells whether the line is joining upper pivots or the lower pivots ohlcArray (OHLC[] type from Trendoscope/ohlc/2): Array of OHLC values Returns: boolean flag indicating if the trend line is valid and the trend line object as tuple
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v4
Updated: Pattern Object containing Individual Pattern data Fields: dir (series int): direction of the last pivot points (chart.point[]): array of Zigzag Pivot points trendLine1 (Line type from Trendoscope/LineWrapper/1): First trend line joining pivots 1, 3, 5 trendLine2 (Line type from Trendoscope/LineWrapper/1): Second trend line joining pivots 2, 4 (, 6) properties (DrawingProperties): DrawingProperties Object carrying common properties patternColor (series color): Individual pattern color. Lines and labels will be using this color. ratioDiff (series float): Difference between trendLine1 and trendLine2 ratios zigzagLine (series polyline): Internal zigzag line drawing Object pivotLabels (label[]): array containning Pivot labels patternLabel (series label): pattern label Object patternType (series int): integer representing the pattern type patternName (series string): Type of pattern in string
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v5
Updated: method inspect(points, stratingBar, endingBar, direction, ohlcArray) Creates a trend line between 2 or 3 points and validates and selects best combination Namespace types: chart.point[] Parameters: points (chart.point[]): Array of chart.point objects used for drawing trend line stratingBar (int): starting bar of the trend line endingBar (int): ending bar of the trend line direction (float): direction of the last pivot. Tells whether the line is joining upper pivots or the lower pivots ohlcArray (OHLC[] type from Trendoscope/ohlc/1): Array of OHLC values Returns: boolean flag indicating if the trend line is valid and the trend line object as tuple