ZigzagMethodsLibrary "ZigzagMethods"
Object oriented implementation of Zigzag methods. Please refer to ZigzagTypes library for User defined types used in this library
tostring(this, sortKeys, sortOrder, includeKeys)
Converts ZigzagTypes/Pivot object to string representation
Parameters:
this : ZigzagTypes/Pivot
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of ZigzagTypes/Pivot
tostring(this, sortKeys, sortOrder, includeKeys)
Converts Array of Pivot objects to string representation
Parameters:
this : Pivot object array
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of Pivot object array
tostring(this)
Converts ZigzagFlags object to string representation
Parameters:
this : ZigzagFlags object
Returns: string representation of ZigzagFlags
tostring(this, sortKeys, sortOrder, includeKeys)
Converts ZigzagTypes/Zigzag object to string representation
Parameters:
this : ZigzagTypes/Zigzagobject
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of ZigzagTypes/Zigzag
calculate(this, ohlc, indicators, indicatorNames)
Calculate zigzag based on input values and indicator values
Parameters:
this : Zigzag object
ohlc : Array containing OHLC values. Can also have custom values for which zigzag to be calculated
indicators : Array of indicator values
indicatorNames : Array of indicator names for which values are present. Size of indicators array should be equal to that of indicatorNames
Returns: current Zigzag object
calculate(this)
Calculate zigzag based on properties embedded within Zigzag object
Parameters:
this : Zigzag object
Returns: current Zigzag object
nextlevel(this)
Calculate Next Level Zigzag based on the current calculated zigzag object
Parameters:
this : Zigzag object
Returns: Next Level Zigzag object
clear(this)
Clears zigzag drawings array
Parameters:
this : array
Returns: void
drawfresh(this)
draws fresh zigzag based on properties embedded in ZigzagDrawing object
Parameters:
this : ZigzagDrawing object
Returns: ZigzagDrawing object
drawcontinuous(this)
draws zigzag based on the zigzagmatrix input
Parameters:
this : ZigzagDrawing object
Returns:
Piyasa Geometrisi
ZigzagTypesLibrary "ZigzagTypes"
Zigzag related user defined types. Depends on DrawingTypes library for basic types
Indicator
Indicator is collection of indicator values applied on high, low and close
Fields:
indicatorHigh : Indicator Value applied on High
indicatorLow : Indicator Value applied on Low
PivotCandle
PivotCandle represents data of the candle which forms either pivot High or pivot low or both
Fields:
_high : High price of candle forming the pivot
_low : Low price of candle forming the pivot
length : Pivot length
pHighBar : represents number of bar back the pivot High occurred.
pLowBar : represents number of bar back the pivot Low occurred.
pHigh : Pivot High Price
pLow : Pivot Low Price
indicators : Array of Indicators - allows to add multiple
Pivot
Pivot refers to zigzag pivot. Each pivot can contain various data
Fields:
point : pivot point coordinates
dir : direction of the pivot. Valid values are 1, -1, 2, -2
level : is used for multi level zigzags. For single level, it will always be 0
ratio : Price Ratio based on previous two pivots
indicatorNames : Names of the indicators applied on zigzag
indicatorValues : Values of the indicators applied on zigzag
indicatorRatios : Ratios of the indicators applied on zigzag based on previous 2 pivots
ZigzagFlags
Flags required for drawing zigzag. Only used internally in zigzag calculation. Should not set the values explicitly
Fields:
newPivot : true if the calculation resulted in new pivot
doublePivot : true if the calculation resulted in two pivots on same bar
updateLastPivot : true if new pivot calculated replaces the old one.
Zigzag
Zigzag object which contains whole zigzag calculation parameters and pivots
Fields:
length : Zigzag length. Default value is 5
numberOfPivots : max number of pivots to hold in the calculation. Default value is 20
offset : Bar offset to be considered for calculation of zigzag. Default is 0 - which means calculation is done based on the latest bar.
level : Zigzag calculation level - used in multi level recursive zigzags
zigzagPivots : array which holds the last n pivots calculated.
flags : ZigzagFlags object which is required for continuous drawing of zigzag lines.
ZigzagObject
Zigzag Drawing Object
Fields:
zigzagLine : Line joining two pivots
zigzagLabel : Label which can be used for drawing the values, ratios, directions etc.
ZigzagProperties
Object which holds properties of zigzag drawing. To be used along with ZigzagDrawing
Fields:
lineColor : Zigzag line color. Default is color.blue
lineWidth : Zigzag line width. Default is 1
lineStyle : Zigzag line style. Default is line.style_solid.
showLabel : If set, the drawing will show labels on each pivot. Default is false
textColor : Text color of the labels. Only applicable if showLabel is set to true.
maxObjects : Max number of zigzag lines to display. Default is 300
xloc : Time/Bar reference to be used for zigzag drawing. Default is Time - xloc.bar_time.
ZigzagDrawing
Object which holds complete zigzag drawing objects and properties.
Fields:
properties : ZigzagProperties object which is used for setting the display styles of zigzag
drawings : array which contains lines and labels of zigzag drawing.
zigzag : Zigzag object which holds the calculations.
DrawingMethodsLibrary "DrawingMethods"
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/Point object to string representation
Parameters:
this : DrawingTypes/Point object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/Point
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/LineProperties object to string representation
Parameters:
this : DrawingTypes/LineProperties object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/LineProperties
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/Line object to string representation
Parameters:
this : DrawingTypes/Line object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/Line
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/LabelProperties object to string representation
Parameters:
this : DrawingTypes/LabelProperties object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/LabelProperties
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/Label object to string representation
Parameters:
this : DrawingTypes/Label object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/Label
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/Linefill object to string representation
Parameters:
this : DrawingTypes/Linefill object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/Linefill
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/BoxProperties object to string representation
Parameters:
this : DrawingTypes/BoxProperties object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/BoxProperties
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/BoxText object to string representation
Parameters:
this : DrawingTypes/BoxText object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/BoxText
tostring(this, sortKeys, sortOrder, includeKeys)
Converts DrawingTypes/Box object to string representation
Parameters:
this : DrawingTypes/Box object
sortKeys : If set to true, string output is sorted by keys.
sortOrder : Applicable only if sortKeys is set to true. Positive number will sort them in ascending order whreas negative numer will sort them in descending order. Passing 0 will not sort the keys
includeKeys : Array of string containing selective keys. Optional parmaeter. If not provided, all the keys are considered
Returns: string representation of DrawingTypes/Box
delete(this)
Deletes line from DrawingTypes/Line object
Parameters:
this : DrawingTypes/Line object
Returns: Line object deleted
delete(this)
Deletes label from DrawingTypes/Label object
Parameters:
this : DrawingTypes/Label object
Returns: Label object deleted
delete(this)
Deletes Linefill from DrawingTypes/Linefill object
Parameters:
this : DrawingTypes/Linefill object
Returns: Linefill object deleted
delete(this)
Deletes box from DrawingTypes/Box object
Parameters:
this : DrawingTypes/Box object
Returns: DrawingTypes/Box object deleted
delete(this)
Deletes lines from array of DrawingTypes/Line objects
Parameters:
this : Array of DrawingTypes/Line objects
Returns: Array of DrawingTypes/Line objects
delete(this)
Deletes labels from array of DrawingTypes/Label objects
Parameters:
this : Array of DrawingTypes/Label objects
Returns: Array of DrawingTypes/Label objects
delete(this)
Deletes linefill from array of DrawingTypes/Linefill objects
Parameters:
this : Array of DrawingTypes/Linefill objects
Returns: Array of DrawingTypes/Linefill objects
delete(this)
Deletes boxes from array of DrawingTypes/Box objects
Parameters:
this : Array of DrawingTypes/Box objects
Returns: Array of DrawingTypes/Box objects
clear(this)
clear items from array of DrawingTypes/Line while deleting underlying objects
Parameters:
this : array
Returns: void
clear(this)
clear items from array of DrawingTypes/Label while deleting underlying objects
Parameters:
this : array
Returns: void
clear(this)
clear items from array of DrawingTypes/Linefill while deleting underlying objects
Parameters:
this : array
Returns: void
clear(this)
clear items from array of DrawingTypes/Box while deleting underlying objects
Parameters:
this : array
Returns: void
draw(this)
Creates line from DrawingTypes/Line object
Parameters:
this : DrawingTypes/Line object
Returns: line created from DrawingTypes/Line object
draw(this)
Creates lines from array of DrawingTypes/Line objects
Parameters:
this : Array of DrawingTypes/Line objects
Returns: Array of DrawingTypes/Line objects
draw(this)
Creates label from DrawingTypes/Label object
Parameters:
this : DrawingTypes/Label object
Returns: label created from DrawingTypes/Label object
draw(this)
Creates labels from array of DrawingTypes/Label objects
Parameters:
this : Array of DrawingTypes/Label objects
Returns: Array of DrawingTypes/Label objects
draw(this)
Creates linefill object from DrawingTypes/Linefill
Parameters:
this : DrawingTypes/Linefill objects
Returns: linefill object created
draw(this)
Creates linefill objects from array of DrawingTypes/Linefill objects
Parameters:
this : Array of DrawingTypes/Linefill objects
Returns: Array of DrawingTypes/Linefill used for creating linefills
draw(this)
Creates box from DrawingTypes/Box object
Parameters:
this : DrawingTypes/Box object
Returns: box created from DrawingTypes/Box object
draw(this)
Creates labels from array of DrawingTypes/Label objects
Parameters:
this : Array of DrawingTypes/Label objects
Returns: Array of DrawingTypes/Label objects
createLabel(this, lblText, tooltip, properties)
Creates DrawingTypes/Label object from DrawingTypes/Point
Parameters:
this : DrawingTypes/Point object
lblText : Label text
tooltip : Tooltip text. Default is na
properties : DrawingTypes/LabelProperties object. Default is na - meaning default values are used.
Returns: DrawingTypes/Label object
createLine(this, other, properties)
Creates DrawingTypes/Line object from one DrawingTypes/Point to other
Parameters:
this : First DrawingTypes/Point object
other : Second DrawingTypes/Point object
properties : DrawingTypes/LineProperties object. Default set to na - meaning default values are used.
Returns: DrawingTypes/Line object
createLinefill(this, other, fillColor, transparency)
Creates DrawingTypes/Linefill object from DrawingTypes/Line object to other DrawingTypes/Line object
Parameters:
this : First DrawingTypes/Line object
other : Other DrawingTypes/Line object
fillColor : fill color of linefill. Default is color.blue
transparency : fill transparency for linefill. Default is 80
Returns: Array of DrawingTypes/Linefill object
createBox(this, other, properties, textProperties)
Creates DrawingTypes/Box object from one DrawingTypes/Point to other
Parameters:
this : First DrawingTypes/Point object
other : Second DrawingTypes/Point object
properties : DrawingTypes/BoxProperties object. Default set to na - meaning default values are used.
textProperties : DrawingTypes/BoxText object. Default is na - meaning no text will be drawn
Returns: DrawingTypes/Box object
createBox(this, properties, textProperties)
Creates DrawingTypes/Box object from DrawingTypes/Line as diagonal line
Parameters:
this : Diagonal DrawingTypes/PoLineint object
properties : DrawingTypes/BoxProperties object. Default set to na - meaning default values are used.
textProperties : DrawingTypes/BoxText object. Default is na - meaning no text will be drawn
Returns: DrawingTypes/Box object
DrawingTypesLibrary "DrawingTypes"
User Defined Types for basic drawing structure. Other types and methods will be built on these.
Point
Point refers to point on chart
Fields:
price : pivot price
bar : pivot bar
bartime : pivot bar time
LineProperties
Properties of line object
Fields:
xloc : X Reference - can be either xloc.bar_index or xloc.bar_time. Default is xloc.bar_index
extend : Property which sets line to extend towards either right or left or both. Valid values are extend.right, extend.left, extend.both, extend.none. Default is extend.none
color : Line color
style : Line style, valid values are line.style_solid, line.style_dashed, line.style_dotted, line.style_arrow_left, line.style_arrow_right, line.style_arrow_both. Default is line.style_solid
width : Line width. Default is 1
Line
Line object created from points
Fields:
start : Starting point of the line
end : Ending point of the line
properties : LineProperties object which defines the style of line
object : Derived line object
LabelProperties
Properties of label object
Fields:
xloc : X Reference - can be either xloc.bar_index or xloc.bar_time. Default is xloc.bar_index
yloc : Y reference - can be yloc.price, yloc.abovebar, yloc.belowbar. Default is yloc.price
color : Label fill color
style : Label style as defined in www.tradingview.com Default is label.style_none
textcolor : text color. Default is color.black
size : Label text size. Default is size.normal. Other values are size.auto, size.tiny, size.small, size.normal, size.large, size.huge
textalign : Label text alignment. Default if text.align_center. Other allowed values - text.align_right, text.align_left, text.align_top, text.align_bottom
text_font_family : The font family of the text. Default value is font.family_default. Other available option is font.family_monospace
Label
Label object
Fields:
point : Point where label is drawn
lblText : label text
tooltip : Tooltip text. Default is na
properties : LabelProperties object
object : Pine label object
Linefill
Linefill object
Fields:
line1 : First line to create linefill
line2 : Second line to create linefill
fillColor : Fill color
transparency : Fill transparency range from 0 to 100
object : linefill object created from wrapper
BoxProperties
BoxProperties object
Fields:
border_color : Box border color. Default is color.blue
bgcolor : box background color
border_width : Box border width. Default is 1
border_style : Box border style. Default is line.style_solid
extend : Extend property of box. default is extend.none
xloc : defines if drawing needs to be done based on bar index or time. default is xloc.bar_index
BoxText
Box Text properties.
Fields:
boxText : Text to be printed on the box
text_size : Text size. Default is size.auto
text_color : Box text color. Default is color.yellow.
text_halign : horizontal align style - default is text.align_center
text_valign : vertical align style - default is text.align_center
text_wrap : text wrap style - default is text.wrap_auto
text_font_family : Text font. Default is
Box
Box object
Fields:
p1 : Diagonal point one
p2 : Diagonal point two
properties : Box properties
textProperties : Box text properties
object : Box object created
Wave Generator Library (WGL)Library "WaveGenerator"
Wave Generator Library
max(source)
max
Parameters:
source : is the input to take the maximum.
Returns: foat
min(source)
min
Parameters:
source : is the input to take the minimum.
Returns: foat
min_max(src, height)
min_max
Parameters:
src : is the input for the min/max
height
Returns: float
sine_wave(_wave_height, _wave_duration, _phase_shift, _phase_shift_2)
sine_wave
Parameters:
_wave_height : Maximum output level
_wave_duration : Wave length
_phase_shift : Number of harmonics
_phase_shift_2
Returns: float
triangle_wave(_wave_height, _wave_duration, _num_harmonics, _phase_shift)
triangle_wave
Parameters:
_wave_height : Maximum output level
_wave_duration : Wave length
_num_harmonics : Number of harmonics
_phase_shift : Phase shift
Returns: float
saw_wave(_wave_height, _wave_duration, _num_harmonics, _phase_shift)
saw_wave
Parameters:
_wave_height : Maximum output level
_wave_duration : Wave length
_num_harmonics : Number of harmonics
_phase_shift : Phase shift
Returns: float
ramp_saw_wave(_wave_height, _wave_duration, _num_harmonics, _phase_shift)
ramp_saw_wave
Parameters:
_wave_height : Maximum output level
_wave_duration : Wave length
_num_harmonics : Number of harmonics
_phase_shift : Phase shift
Returns: float
square_wave(_wave_height, _wave_duration, _num_harmonics, _phase_shift)
square_wave
Parameters:
_wave_height : Maximum output level
_wave_duration : Wave length
_num_harmonics : Number of harmonics
_phase_shift : Phase shift
Returns: float
wave_select(style, _wave_height, _wave_duration, _num_harmonics, _phase_shift)
wave_select
@peram style Select the style of wave. "Sine", "Triangle", "Saw", "Ramp Saw", "Square"
Parameters:
style
_wave_height : Maximum output level
_wave_duration : Wave length
_num_harmonics : Number of harmonics
_phase_shift : Phase shift
Returns: float
CommonTypesMathLibrary "CommonTypesMath"
Provides a common library source for common types of useful mathematical structures.
Includes: `complex, Vector2, Vector3, Vector4, Quaternion, Segment2, Segment3, Pole, Plane, M32, M44`
complex
Representation of a Complex Number, a complex number `z` is a number in the form `z = x + yi`,
Fields:
re : Real part of the complex number.
im : Imaginary part of the complex number.
Vector2
Representation of a two dimentional vector with components `(x:float,y:float)`.
Fields:
x : Coordinate `x` of the vector.
y : Coordinate `y` of the vector.
Vector3
Representation of a three dimentional vector with components `(x:float,y:float,z:float)`.
Fields:
x : Coordinate `x` of the vector.
y : Coordinate `y` of the vector.
z : Coordinate `z` of the vector.
Vector4
Representation of a four dimentional vector with components `(x:float,y:float,z:float,w:float)`.
Fields:
x : Coordinate `x` of the vector.
y : Coordinate `y` of the vector.
z : Coordinate `z` of the vector.
w : Coordinate `w` of the vector.
Quaternion
Representation of a four dimentional vector with components `(x:float,y:float,z:float,w:float)`.
Fields:
x : Coordinate `x` of the vector.
y : Coordinate `y` of the vector.
z : Coordinate `z` of the vector.
w : Coordinate `w` of the vector, specifies the rotation component.
Segment2
Representation of a line in two dimentional space.
Fields:
origin : Origin coordinates.
target : Target coordinates.
Segment3
Representation of a line in three dimentional space.
Fields:
origin : Origin coordinates.
target : Target coordinates.
Pole
Representation of polar coordinates `(radius:float,angle:float)`.
Fields:
radius : Radius of the pole.
angle : Angle in radians of the pole.
Plane
Representation of a 3D plane.
Fields:
normal : Normal vector of the plane.
distance : Distance of the plane along its normal from the origin.
M32
Representation of a 3x2 matrix.
Fields:
m11 : First element of the first row.
m12 : Second element of the first row.
m21 : First element of the second row.
m22 : Second element of the second row.
m31 : First element of the third row.
m32 : Second element of the third row.
M44
Representation of a 4x4 matrix.
Fields:
m11 : First element of the first row.
m12 : Second element of the first row.
m13 : Third element of the first row.
m14 : fourth element of the first row.
m21 : First element of the second row.
m22 : Second element of the second row.
m23 : Third element of the second row.
m24 : fourth element of the second row.
m31 : First element of the third row.
m32 : Second element of the third row.
m33 : Third element of the third row.
m34 : fourth element of the third row.
m41 : First element of the fourth row.
m42 : Second element of the fourth row.
m43 : Third element of the fourth row.
m44 : fourth element of the fourth row.
BasicVisibleChartBasic library for the visible range chart; with functions to allow plotting Fibs from body high/low as well as wick high/low
-Thanks to code from @PineCoders Visible Chart library (PineCoders/VisibleChart/4), which is a much more comprehensive library than this, but which does not include some functions that I find useful:
-Added the following exportable functions: highest/lowest body, highest/lowest close, highest/lowest open. These allow one to anchor fibs from bodies rather than wicks
-Added a Fib Box function in the example code
The above chart shows the example code plotting a Fib range drawn from bodies and a highlighted retracement zone (61.8 % - 78.6% )
~~All Exportable Functions~~
barIsVisible()
highestClose()
highestOpen()
highestBody()
lowestClose()
lowestOpen()
lowestBody()
high()
highBarTime()
low()
lowBarTime()
open()
close()
eHarmonicpatternsLogScaleLibrary "eHarmonicpatternsLogScale"
Library provides functions to scan harmonic patterns both or normal and log scale
getSupportedPatterns()
get_prz_range(x, a, b, c, patternArray, errorPercent, start_adj, end_adj, logScale)
Provides PRZ range based on BCD and XAD ranges
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
patternArray : Pattern flags for which PRZ range needs to be calculated
errorPercent : Error threshold
start_adj : - Adjustments for entry levels
end_adj : - Adjustments for stop levels
logScale : - calculate on log scale. Default is false
Returns: Start and end of consolidated PRZ range
get_prz_range_xad(x, a, b, c, patternArray, errorPercent, start_adj, end_adj, logScale)
Provides PRZ range based on XAD range only
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
patternArray : Pattern flags for which PRZ range needs to be calculated
errorPercent : Error threshold
start_adj : - Adjustments for entry levels
end_adj : - Adjustments for stop levels
logScale : - calculate on log scale. Default is false
Returns: Start and end of consolidated PRZ range
get_projection_range(x, a, b, c, patternArray, errorPercent, start_adj, end_adj, logScale)
Provides Projection range based on BCD and XAD ranges
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
patternArray : Pattern flags for which PRZ range needs to be calculated
errorPercent : Error threshold
start_adj : - Adjustments for entry levels
end_adj : - Adjustments for stop levels
logScale : - calculate on log scale. Default is false
Returns: Array containing start and end ranges
isHarmonicPattern(x, a, b, c, d, flags, defaultEnabled, errorPercent, logScale)
Checks for harmonic patterns
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
d : D coordinate value
flags : flags to check patterns. Send empty array to enable all
defaultEnabled
errorPercent : Error threshold
logScale : - calculate on log scale. Default is false
Returns: Array of boolean values which says whether valid pattern exist and array of corresponding pattern names
isHarmonicProjection(x, a, b, c, flags, defaultEnabled, errorPercent, logScale)
Checks for harmonic pattern projection
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
flags : flags to check patterns. Send empty array to enable all
defaultEnabled
errorPercent : Error threshold
logScale : - calculate on log scale. Default is false
Returns: Array of boolean values which says whether valid pattern exist and array of corresponding pattern names.
FibRatiosLibrary "FibRatios"
Library with calculation logic for fib retracement, extension and ratios
retracement(a, b, ratio, logScale, precision)
Calculates the retracement for points a, b with given ratio and scale
Parameters:
a : Starting point a
b : Second point b
ratio : Ratio for which we need to calculate retracement c
logScale : Flag to get calculations in log scale. Default is false
precision : rounding precision. If set to netagive number, round_to_mintick is applied. Default is -1
Returns: retracement point c for points a,b with given ratio and scale
retracementRatio(a, b, c, logScale, precision)
Calculates the retracement ratio for points a, b, c with given scale
Parameters:
a : Starting point a
b : Second point b
c : Retracement point. c should be placed between a and b
logScale : Flag to get calculations in log scale. Default is false
precision : rounding precision. If set to netagive number, round_to_mintick is applied. Default is 3
Returns: retracement ratio for points a,b,c on given scale
extension(a, b, c, ratio, logScale, precision)
Calculates the extensions for points a, b, c with given ratio and scale
Parameters:
a : Starting point a
b : Second point b
c : Retracement point. c should be placed between a and b
ratio : Ratio for which we need to calculate extension d
logScale : Flag to get calculations in log scale. Default is false
precision : rounding precision. If set to netagive number, round_to_mintick is applied. Default is -1
Returns: extensoin point d for points a,b,c with given ratio and scale
extensionRatio(a, b, c, d, logScale, precision)
Calculates the extension ratio for points a, b, c, d with given scale
Parameters:
a : Starting point a
b : Second point b
c : Retracement point. c should be placed between a and b
d : Extension point. d should be placed beyond a, c. But, can be with b,c or beyond b
logScale : Flag to get calculations in log scale. Default is false
precision : rounding precision. If set to netagive number, round_to_mintick is applied. Default is 3
Returns: extension ratio for points a,b,c,d on given scale
PatternLibrary "Pattern"
Pattern object definitions and functions. Easily draw and keep track of patterns, legs, and points.
Supported pattern types (as of Version 1):
Type Leg validation # legs
"xabcd" Direction 3 or 4 (point D not required)
"zigzag" Direction >= 2
"free" None >= 2
erase_label(this)
Delete the point label
Parameters:
this : Point
Returns: Void
draw_label(this, position, clr, transp, txt_clr, txt, tooltip, size)
Draw the point label
Parameters:
this : Point
position
clr
transp
txt_clr
txt
tooltip
size
Returns: line
leg_init(a, b, prev, next, line)
Initialize a pattern leg
Parameters:
a : Point A (required)
b : Point B (required)
prev : Previous leg
next : Next leg
line : Line
Returns: New instance of leg object
erase(this)
Delete the pattern leg
Parameters:
this : Leg
Returns: Void
erase(this)
Parameters:
this
draw(this, clr, style, transp, width)
Draw the pattern leg
Parameters:
this : Leg
clr : Color
style : Style ("solid", "dotted", "dashed", "arrowleft", "arrowright")
transp : Transparency
width : Width
Returns: line
draw(this, clr, style, transp, width)
Parameters:
this
clr
style
transp
width
leg_getLineTerms(this)
Get the slope and y-intercept of a leg
Parameters:
this : Leg
Returns:
leg_getPrice(this, index)
Get the price (Y) at a given bar index (X) within the leg
Parameters:
this : Leg
index : Bar index
Returns: Price (float)
pattern_init(legs, tp, name, subType, pid)
Initialize a pattern object from a given set of legs
Parameters:
legs : Array of pattern legs (required)
tp : Pattern type ("zigzag", "xabcd", or "free". dft = "free")
name : Pattern name
subType : Pattern subtype
pid : Pattern Identifier string
Returns: New instance of pattern object, if one was successfully created
pattern_init(points, tp, name, subType, pid)
Initialize a pattern object from a given set of points
Parameters:
points
tp : Pattern type ("zigzag", "xabcd", or "free". dft = "free")
name : Pattern name
subType : Pattern subtype
pid : Pattern Identifier string
Returns: New instance of pattern object, if one was successfully created
point
A point on the chart (x,y)
Fields:
x : Bar index (x coordinate)
y
label
leg
A pattern leg (point A to point B)
Fields:
a : Point A
b
deltaX
deltaY
prev
next
retrace
line
pattern
A pattern (set of at least 2 connected legs)
Fields:
legs
type
subType
name
pid
BpaLibrary "Bpa"
TODO: library of Brooks Price Action concepts
isBreakoutBar(atr, high, low, close, open, tail, size)
TODO: check if the bar is a breakout based on the specified conditions
Parameters:
atr : TODO: atr value
high : TODO: high price
low : TODO: low price
close : TODO: close price
open : TODO: open price
tail : TODO: decimal value for a percent that represent the size of the tail of the bar that cant be preceeded to be considered strong close
size : TODO: decimal value for a percent that represents by how much the breakout bar should be bigger than others to be considered one
Returns: TODO: boolean value, true if breakout bar, false otherwise
intersectLibrary "intersect"
Find Line Intersection X/Y coordinates.
Simple to use, will find intersection if it exists on the segments
if the line segments do not cross on segment, an 'na' value will be returned
if you plot new items with the output coords, they still plot.
avoid this by setting a na(x) condition before plotting new items
get(l1, l2, ( optional _round) )
line intersection coordinates
Parameters:
l1 : (line) first line
l2 : (line) second line
_round : True to make an INT for plotting
if not used, will not round ( overload loophole)
Returns: with x as int if bool is used
TrigLibrary "Trig"
Trigonometric functions
rt_get_angleAlpha(a, b, c, deg)
Get angle α of a right triangle, given the lengths of its sides
Parameters:
a : length of leg a (float)
b : length of leg b (float)
c : length of hypotenuse (float)
deg : flag to return angle in degrees (bool - default = false)
Returns: angle α in radians (or degrees if deg == true)
rt_get_angleAlphaFromLine(x1, y1, x2, y2, l, deg)
Get angle α of a right triangle formed by the given line
Parameters:
x1 : x coordinate 1 (int - optional, required if argument l is not specified)
y1 : y coordinate 1 (float - optional, required if argument l is not specified)
x2 : x coordinate 2 (int - optional, required if argument l is not specified)
y2 : y coordinate 2 (float - optional, required if argument l is not specified)
l : line object (line - optional, required if x1, y1, x2, and y2 agruments are not specified)
deg : flag to return angle in degrees (bool - default = false)
Returns: angle α in radians (or degrees if deg == true)
rt_get_angleBeta(a, b, c, deg)
Get angle β of a right triangle, given the lengths of its sides
Parameters:
a : length of leg a (float)
b : length of leg b (float)
c : length of hypotenuse (float)
deg : flag to return angle in degrees (bool - default = false)
Returns: angle β in radians (or degrees if deg == true)
rt_get_angleBetaFromLine(x1, y1, x2, y2, l, deg)
Get angle β of a right triangle formed by the given line
Parameters:
x1 : x coordinate 1 (int - optional, required if argument l is not specified)
y1 : y coordinate 1 (float - optional, required if argument l is not specified)
x2 : x coordinate 2 (int - optional, required if argument l is not specified)
y2 : y coordinate 2 (float - optional, required if argument l is not specified)
l : line object (line - optional, required if x1, y1, x2, and y2 agruments are not specified)
deg : flag to return angle in degrees (bool - default = false)
Returns: angle β in radians (or degrees if deg == true)
HelperFunctionsLibrary "HelperFunctions"
A collection of my most used functions
apply_smoothing()
Apply one of Pine Script's built-in smoothing functions to a series
rzigzagLibrary "rzigzag"
Recursive Zigzag Using Matrix allows to create zigzags recursively on multiple levels. After bit of consideration, decided to make this public.
zigzag(length, ohlc, numberOfPivots, offset)
calculates plain zigzag based on input
Parameters:
length : Zigzag Length
ohlc : Array containing ohlc values. Can also contain custom series
numberOfPivots : Number of max pivots to be returned
offset : Offset from current bar. Can be used for calculations based on confirmed bars
Returns:
nextlevel(zigzagmatrix, numberOfPivots)
calculates next level zigzag based on present zigzag coordinates
Parameters:
zigzagmatrix : Matrix containing zigzag pivots, bars, bar time, direction and level
numberOfPivots : Number of max pivots to be returned
Returns: matrix zigzagmatrix
draw(zigzagmatrix, newPivot, doublePivot, lineColor, lineWidth, lineStyle, showLabel, xloc)
draws zigzag based on the zigzagmatrix input
Parameters:
zigzagmatrix : Matrix containing zigzag pivots, bars, bar time, direction and level
newPivot : Flag indicating there is update in the pivots
doublePivot : Flag containing there is double pivot update on same bar
lineColor : Zigzag line color
lineWidth : Zigzag line width
lineStyle : Zigzag line style
showLabel : Flag to indicate display pivot labels
xloc : xloc preference for drawing lines/labels
Returns:
draw(length, ohlc, numberOfPivots, offset, lineColor, lineWidth, lineStyle, showLabel, xloc)
calculates and draws zigzag based on zigzag length and source input
Parameters:
length : Zigzag Length
ohlc : Array containing ohlc values. Can also contain custom series
numberOfPivots : Number of max pivots to be returned
offset : Offset from current bar. Can be used for calculations based on confirmed bars
lineColor : Zigzag line color
lineWidth : Zigzag line width
lineStyle : Zigzag line style
showLabel : Flag to indicate display pivot labels
xloc : xloc preference for drawing lines/labels
Returns:
drawfresh(zigzagmatrix, zigzaglines, zigzaglabels, lineColor, lineWidth, lineStyle, showLabel, xloc)
draws fresh zigzag for all pivots in the input matrix.
Parameters:
zigzagmatrix : Matrix containing zigzag pivots, bars, bar time, direction and level
zigzaglines : array to which all newly created lines will be added
zigzaglabels : array to which all newly created lables will be added
lineColor : Zigzag line color
lineWidth : Zigzag line width
lineStyle : Zigzag line style
showLabel : Flag to indicate display pivot labels
xloc : xloc preference for drawing lines/labels
Returns:
CommonMarkupLibrary "CommonMarkup"
Provides functions for chart markup, such as indicating recession bands.
markRecessionBands(showBands, lineY, labelY)
Mark vertical bands and show recession band labels if argument showBands is true. Example "markRecessionBands(bar_index ,3.0"
Parameters:
showBands : - show vertical recession bands when true. Functionally equiv to no op when false
lineY : - y-axis value for line positioning
labelY : - y-axis value for label positioning
@return true - always answers the value of showBands
divergenceLibrary "divergence"
divergence: divergence algorithm with top and bottom kline tolerance
regular_bull(series, series, simple, simple, simple, simple, simple) regular_bull: regular bull divergence, lower low src but higher low osc
Parameters:
series : float src: the source series
series : float osc: the oscillator index
simple : int lbL: look back left
simple : int lbR: look back right
simple : int rangeL: min look back range
simple : int rangeU: max look back range
simple : int tolerance: the number of tolerant klines
Returns: array:
hidden_bull(series, series, simple, simple, simple, simple, simple) hidden_bull: hidden bull divergence, higher low src but lower low osc
Parameters:
series : float src: the source series
series : float osc: the oscillator index
simple : int lbL: look back left
simple : int lbR: look back right
simple : int rangeL: min look back range
simple : int rangeU: max look back range
simple : int tolerance: the number of tolerant klines
Returns: array:
regular_bear(series, series, simple, simple, simple, simple, simple) regular_bear: regular bear divergence, higher high src but lower high osc
Parameters:
series : float src: the source series
series : float osc: the oscillator index
simple : int lbL: look back left
simple : int lbR: look back right
simple : int rangeL: min look back range
simple : int rangeU: max look back range
simple : int tolerance: the number of tolerant klines
Returns: array:
hidden_bear(series, series, simple, simple, simple, simple, simple) hidden_bear: hidden bear divergence, lower high src but higher high osc
Parameters:
series : float src: the source series
series : float osc: the oscillator index
simple : int lbL: look back left
simple : int lbR: look back right
simple : int rangeL: min look back range
simple : int rangeU: max look back range
simple : int tolerance: the number of tolerant klines
Returns: array:
eHarmonicpatternsExtendedLibrary "eHarmonicpatternsExtended"
Library provides an alternative method to scan harmonic patterns. This is helpful in reducing iterations. Republishing as new library instead of existing eHarmonicpatterns because I need that copy for existing scripts.
scan_xab(bcdRatio, err_min, err_max, patternArray) Checks if bcd ratio is in range of any harmonic pattern
Parameters:
bcdRatio : AB/XA ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
scan_abc_axc(abcRatio, axcRatio, err_min, err_max, patternArray) Checks if abc or axc ratio is in range of any harmonic pattern
Parameters:
abcRatio : BC/AB ratio
axcRatio : XC/AX ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
scan_bcd(bcdRatio, err_min, err_max, patternArray) Checks if bcd ratio is in range of any harmonic pattern
Parameters:
bcdRatio : CD/BC ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
scan_xad_xcd(xadRatio, xcdRatio, err_min, err_max, patternArray) Checks if xad or xcd ratio is in range of any harmonic pattern
Parameters:
xadRatio : AD/XA ratio
xcdRatio : CD/XC ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
isHarmonicPattern(x, a, b, c, d, flags, errorPercent) Checks for harmonic patterns
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
d : D coordinate value
flags : flags to check patterns. Send empty array to enable all
errorPercent : Error threshold
Returns: Array of boolean values which says whether valid pattern exist and array of corresponding pattern names
isHarmonicProjection(x, a, b, c, flags, errorPercent) Checks for harmonic pattern projection
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
flags : flags to check patterns. Send empty array to enable all
errorPercent : Error threshold
Returns: Array of boolean values which says whether valid pattern exist and array of corresponding pattern names.
get_prz_range(x, a, b, c, patternArray, errorPercent, start_adj, end_adj) Provides PRZ range based on BCD and XAD ranges
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
patternArray : Pattern flags for which PRZ range needs to be calculated
errorPercent : Error threshold
start_adj : - Adjustments for entry levels
end_adj : - Adjustments for stop levels
Returns: Start and end of consolidated PRZ range
get_prz_range_xad(x, a, b, c, patternArray, errorPercent, start_adj, end_adj) Provides PRZ range based on XAD range only
Parameters:
x : X coordinate value
a : A coordinate value
b : B coordinate value
c : C coordinate value
patternArray : Pattern flags for which PRZ range needs to be calculated
errorPercent : Error threshold
start_adj : - Adjustments for entry levels
end_adj : - Adjustments for stop levels
Returns: Start and end of consolidated PRZ range
[e2] Drawing Library :: Horizontal Ray█ OVERVIEW
Library "e2hray"
A drawing library that contains the hray() function, which draws a horizontal ray/s with an initial point determined by a specified condition. It plots a ray until it reached the price. The function let you control the visibility of historical levels and setup the alerts.
█ HORIZONTAL RAY FUNCTION
hray(condition, level, color, extend, hist_lines, alert_message, alert_delay, style, hist_style, width, hist_width)
Parameters:
condition : Boolean condition that defines the initial point of a ray
level : Ray price level.
color : Ray color.
extend : (optional) Default value true, current ray levels extend to the right, if false - up to the current bar.
hist_lines : (optional) Default value true, shows historical ray levels that were revisited, default is dashed lines. To avoid alert problems set to 'false' before creating alerts.
alert_message : (optional) Default value string(na), if declared, enables alerts that fire when price revisits a line, using the text specified
alert_delay : (optional) Default value int(0), number of bars to validate the level. Alerts won't trigger if the ray is broken during the 'delay'.
style : (optional) Default value 'line.style_solid'. Ray line style.
hist_style : (optional) Default value 'line.style_dashed'. Historical ray line style.
width : (optional) Default value int(1), ray width in pixels.
hist_width : (optional) Default value int(1), historical ray width in pixels.
Returns: void
█ EXAMPLES
• Example 1. Single horizontal ray from the dynamic input.
//@version=5
indicator("hray() example :: Dynamic input ray", overlay = true)
import e2e4mfck/e2hray/1 as e2draw
inputTime = input.time(timestamp("20 Jul 2021 00:00 +0300"), "Date", confirm = true)
inputPrice = input.price(54, 'Price Level', confirm = true)
e2draw.hray(time == inputTime, inputPrice, color.blue, alert_message = 'Ray level re-test!')
var label mark = label.new(inputTime, inputPrice, 'Selected point to start the ray', xloc.bar_time)
• Example 2. Multiple horizontal rays on the moving averages cross.
//@version=5
indicator("hray() example :: MA Cross", overlay = true)
import e2e4mfck/e2hray/1 as e2draw
float sma1 = ta.sma(close, 20)
float sma2 = ta.sma(close, 50)
bullishCross = ta.crossover( sma1, sma2)
bearishCross = ta.crossunder(sma1, sma2)
plot(sma1, 'sma1', color.purple)
plot(sma2, 'sma2', color.blue)
// 1a. We can use 2 function calls to distinguish long and short sides.
e2draw.hray(bullishCross, sma1, color.green, alert_message = 'Bullish Cross Level Broken!', alert_delay = 10)
e2draw.hray(bearishCross, sma2, color.red, alert_message = 'Bearish Cross Level Broken!', alert_delay = 10)
// 1b. Or a single call for both.
// e2draw.hray(bullishCross or bearishCross, sma1, bullishCross ? color.green : color.red)
• Example 3. Horizontal ray at the all time highs with an alert.
//@version=5
indicator("hray() example :: ATH", overlay = true)
import e2e4mfck/e2hray/1 as e2draw
var float ath = 0, ath := math.max(high, ath)
bool newAth = ta.change(ath)
e2draw.hray(nz(newAth ), high , color.orange, alert_message = 'All Time Highs Tested!', alert_delay = 10)
FunctionCosineSimilarityLibrary "FunctionCosineSimilarity"
Cosine Similarity method.
function(sample_a, sample_b) Measure the similarity of 2 vectors.
Parameters:
sample_a : float array, values.
sample_b : float array, values.
Returns: float.
diss(cosim) Dissimilarity helper function.
Parameters:
cosim : float, cosine similarity value (0 > 1)
Returns: float
FunctionPatternDecompositionLibrary "FunctionPatternDecomposition"
Methods for decomposing price into common grid/matrix patterns.
series_to_array(source, length) Helper for converting series to array.
Parameters:
source : float, data series.
length : int, size.
Returns: float array.
smooth_data_2d(data, rate) Smooth data sample into 2d points.
Parameters:
data : float array, source data.
rate : float, default=0.25, the rate of smoothness to apply.
Returns: tuple with 2 float arrays.
thin_points(data_x, data_y, rate) Thin the number of points.
Parameters:
data_x : float array, points x value.
data_y : float array, points y value.
rate : float, default=2.0, minimum threshold rate of sample stdev to accept points.
Returns: tuple with 2 float arrays.
extract_point_direction(data_x, data_y) Extract the direction each point faces.
Parameters:
data_x : float array, points x value.
data_y : float array, points y value.
Returns: float array.
find_corners(data_x, data_y, rate) ...
Parameters:
data_x : float array, points x value.
data_y : float array, points y value.
rate : float, minimum threshold rate of data y stdev.
Returns: tuple with 2 float arrays.
grid_coordinates(data_x, data_y, m_size) transforms points data to a constrained sized matrix format.
Parameters:
data_x : float array, points x value.
data_y : float array, points y value.
m_size : int, default=10, size of the matrix.
Returns: flat 2d pseudo matrix.
FunctionGenerateRandomPointsInShapeLibrary "FunctionGenerateRandomPointsInShape"
Generate random vector points in geometric shape (parallelogram, triangle)
random_parallelogram(vector_a, vector_b) Generate random vector point in a parallelogram shape.
Parameters:
vector_a : float array, vector of (x, y) shape.
vector_b : float array, vector of (x, y) shape.
Returns: float array, vector of (x, y) shape.
random_triangle(vector_a, vector_b) Generate random vector point in a triangle shape.
Parameters:
vector_a : float array, vector of (x, y) shape.
vector_b : float array, vector of (x, y) shape.
Returns: float array, vector of (x, y) shape.
eHarmonicpatternsLibrary "eHarmonicpatterns"
Library provides an alternative method to scan harmonic patterns. This is helpful in reducing iterations
scan_xab(bcdRatio, err_min, err_max, patternArray) Checks if bcd ratio is in range of any harmonic pattern
Parameters:
bcdRatio : AB/XA ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
scan_abc_axc(abcRatio, axcRatio, err_min, err_max, patternArray) Checks if abc or axc ratio is in range of any harmonic pattern
Parameters:
abcRatio : BC/AB ratio
axcRatio : XC/AX ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
scan_bcd(bcdRatio, err_min, err_max, patternArray) Checks if bcd ratio is in range of any harmonic pattern
Parameters:
bcdRatio : CD/BC ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
scan_xad_xcd(xadRatio, xcdRatio, err_min, err_max, patternArray) Checks if xad or xcd ratio is in range of any harmonic pattern
Parameters:
xadRatio : AD/XA ratio
xcdRatio : CD/XC ratio
err_min : minimum error threshold
err_max : maximum error threshold
patternArray : Array containing pattern check flags. Checks are made only if flags are true. Upon check flgs are overwritten.
isHarmonicPattern(x, a, c, c, d, flags, errorPercent) Checks for harmonic patterns
Parameters:
x : X coordinate value
a : A coordinate value
c : B coordinate value
c : C coordinate value
d : D coordinate value
flags : flags to check patterns. Send empty array to enable all
errorPercent : Error threshold
Returns: Array of boolean values which says whether valid pattern exist and array of corresponding pattern names
isHarmonicProjection(x, a, c, c, flags, errorPercent) Checks for harmonic pattern projection
Parameters:
x : X coordinate value
a : A coordinate value
c : B coordinate value
c : C coordinate value
flags : flags to check patterns. Send empty array to enable all
errorPercent : Error threshold
Returns: Array of boolean values which says whether valid pattern exist and array of corresponding pattern names
