zigzagplusThis is same as existing zigzag library with respect to functionality. But, there is a small update with respect to how arrays are used internally. This also leads to issues with backward compatibility. Hence I decided to make this as new library instead of updating the older one.
Below are the major changes:
Earlier version uses array.unshift for adding new elements and array.pop for removing old elements. But, since array.unshift is considerably slower than alternative method array.push. Hence, this library makes use of array.push method to achieve performance.
While array.push increases the performance significantly, there is also an issue with removing as we no longer will be able to remove the element using pop which is again faster than shift (which need to shit all the elements by index). Hence, have removed the logic of removing elements for zigzag pivots after certain limit. Will think further about it once I find better alternative of handling it.
These implementation change also mean that zigzag pivots received by calling method will be ordered in reverse direction. Latest pivots will be stored with higher array index whereas older pivots are stored with lower array index. This is also the reason why backward compatibility is not achievable with this code change.
Library "zigzagplus"
Library dedicated to zigzags and related indicators
zigzag(length, useAlternativeSource, source, oscillatorSource, directionBias) zigzag: Calculates zigzag pivots and generates an array
Parameters:
length : : Zigzag Length
useAlternativeSource : : If set uses the source for genrating zigzag. Default is false
source : : Alternative source used only if useAlternativeSource is set to true. Default is close
oscillatorSource : : Oscillator source for calculating divergence
directionBias : : Direction bias for calculating divergence
Returns: zigzagpivots : Array containing zigzag pivots
zigzagpivotbars : Array containing zigzag pivot bars
zigzagpivotdirs : Array containing zigzag pivot directions (Lower High : 1, Higher High : 2, Lower Low : -2 and Higher Low : -1)
zigzagpivotratios : Array containing zigzag retracement ratios for each pivot
zigzagoscillators : Array of oscillator values at pivots. Will have valid values only if valid oscillatorSource is provided as per input.
zigzagoscillatordirs: Array of oscillator directions (HH, HL, LH, LL) at pivots. Will have valid values only if valid oscillatorSource is provided as per input.
zigzagtrendbias : Array of trend bias at pivots. Will have valid value only if directionBias series is sent in input parameters
zigzagdivergence : Array of divergence sentiment at each pivot. Will have valid values only if oscillatorSource and directionBias inputs are provided
newPivot : Returns true if new pivot created
doublePivot : Returns true if two new pivots are created on same bar (Happens in case of candles with long wicks and shorter zigzag lengths)
drawzigzag(length, , source, linecolor, linewidth, linestyle, oscillatorSource, directionBias, showHighLow, showRatios, showDivergence) drawzigzag: Calculates and draws zigzag pivots
Parameters:
length : : Zigzag Length
: useAlternativeSource: If set uses the source for genrating zigzag. Default is false
source : : Alternative source used only if useAlternativeSource is set to true. Default is close
linecolor : : zigzag line color
linewidth : : zigzag line width
linestyle : : zigzag line style
oscillatorSource : : Oscillator source for calculating divergence
directionBias : : Direction bias for calculating divergence
showHighLow : : show highlow label
showRatios : : show retracement ratios
showDivergence : : Show divergence on label (Only works if divergence data is available - that is if we pass valid oscillatorSource and directionBias input)
Returns: zigzagpivots : Array containing zigzag pivots
zigzagpivotbars : Array containing zigzag pivot bars
zigzagpivotdirs : Array containing zigzag pivot directions (Lower High : 1, Higher High : 2, Lower Low : -2 and Higher Low : -1)
zigzagpivotratios : Array containing zigzag retracement ratios for each pivot
zigzagoscillators : Array of oscillator values at pivots. Will have valid values only if valid oscillatorSource is provided as per input.
zigzagoscillatordirs: Array of oscillator directions (HH, HL, LH, LL) at pivots. Will have valid values only if valid oscillatorSource is provided as per input.
zigzagtrendbias : Array of trend bias at pivots. Will have valid value only if directionBias series is sent in input parameters
zigzagdivergence : Array of divergence sentiment at each pivot. Will have valid values only if oscillatorSource and directionBias inputs are provided
zigzaglines : Returns array of zigzag lines
zigzaglabels : Returns array of zigzag labels
Arrays
LibraryPrivateUsage001This is a public library that include the functions explained below. The libraries are considered public domain code and permission is not required from the author if you reuse these functions in your open-source scripts
FunctionDecisionTreeLibrary "FunctionDecisionTree"
Method to generate decision tree based on weights.
decision_tree(weights, depth) Method to generate decision tree based on weights.
Parameters:
weights : float array, weights for decision consideration.
depth : int, depth of the tree.
Returns: int array
FunctionForecastLinearLibrary "FunctionForecastLinear"
Method for linear Forecast, same as found in excel and other sheet packages.
forecast(sample_x, sample_y, target_x) linear forecast method.
Parameters:
sample_x : float array, sample data X value.
sample_y : float array, sample data Y value.
target_x : float, target X to get Y forecast value.
Returns: float
FunctionBoxCoxTransformLibrary "FunctionBoxCoxTransform"
Methods to compute the Box-Cox Transformer.
regular(sample, lambda) Regular transform.
Parameters:
sample : float array, sample data values.
lambda : float, scaling factor.
Returns: float array.
inverse(sample, lambda) Regular transform.
Parameters:
sample : float array, sample data values.
lambda : float, scaling factor.
Returns: float array.
FunctionPolynomialRegressionLibrary "FunctionPolynomialRegression"
TODO:
polyreg(sample_x, sample_y) Method to return a polynomial regression channel using (X,Y) sample points.
Parameters:
sample_x : float array, sample data X points.
sample_y : float array, sample data Y points.
Returns: tuple with:
_predictions: Array with adjusted Y values.
_max_dev: Max deviation from the mean.
_min_dev: Min deviation from the mean.
_stdev/_sizeX: Average deviation from the mean.
draw(sample_x, sample_y, extend, mid_color, mid_style, mid_width, std_color, std_style, std_width, max_color, max_style, max_width) Method for drawing the Polynomial Regression into chart.
Parameters:
sample_x : float array, sample point X value.
sample_y : float array, sample point Y value.
extend : string, default=extend.none, extend lines.
mid_color : color, default=color.blue, middle line color.
mid_style : string, default=line.style_solid, middle line style.
mid_width : int, default=2, middle line width.
std_color : color, default=color.aqua, standard deviation line color.
std_style : string, default=line.style_dashed, standard deviation line style.
std_width : int, default=1, standard deviation line width.
max_color : color, default=color.purple, max range line color.
max_style : string, default=line.style_dotted, max line style.
max_width : int, default=1, max line width.
Returns: line array.
FunctionLinearRegressionLibrary "FunctionLinearRegression"
Method for Linear Regression using array sample points.
linreg(sample_x, sample_y) Performs Linear Regression over the provided sample points.
Parameters:
sample_x : float array, sample points X value.
sample_y : float array, sample points Y value.
Returns: tuple with:
_predictions: Array with adjusted Y values.
_max_dev: Max deviation from the mean.
_min_dev: Min deviation from the mean.
_stdev/_sizeX: Average deviation from the mean.
draw(sample_x, sample_y, extend, mid_color, mid_style, mid_width, std_color, std_style, std_width, max_color, max_style, max_width) Method for drawing the Linear Regression into chart.
Parameters:
sample_x : float array, sample point X value.
sample_y : float array, sample point Y value.
extend : string, default=extend.none, extend lines.
mid_color : color, default=color.blue, middle line color.
mid_style : string, default=line.style_solid, middle line style.
mid_width : int, default=2, middle line width.
std_color : color, default=color.aqua, standard deviation line color.
std_style : string, default=line.style_dashed, standard deviation line style.
std_width : int, default=1, standard deviation line width.
max_color : color, default=color.purple, max range line color.
max_style : string, default=line.style_dotted, max line style.
max_width : int, default=1, max line width.
Returns: line array.
MathSpecialFunctionsDiscreteFourierTransformLibrary "MathSpecialFunctionsDiscreteFourierTransform"
Method for Complex Discrete Fourier Transform (DFT).
dft(inputs, inverse) Complex Discrete Fourier Transform (DFT).
Parameters:
inputs : float array, pseudo complex array of paired values .
inverse : bool, invert the transformation.
Returns: float array, pseudo complex array of paired values .
Bursa_SectorLibrary "Bursa_Sector"
: List of stocks classified by sector in Bursa Malaysia (As of Oct 2021)
getSector()
This function will get the sector of current stock that listed in Bursa Malaysia
CreateAndShowZigzagLibrary "CreateAndShowZigzag"
Functions in this library creates/updates zigzag array and shows the zigzag
getZigzag(zigzag, prd, max_array_size) calculates zigzag using period
Parameters:
zigzag : is the float array for the zigzag (should be defined like "var zigzag = array.new_float(0)"). each zigzag points contains 2 element: 1. price level of the zz point 2. bar_index of the zz point
prd : is the length to calculate zigzag waves by highest(prd)/lowest(prd)
max_array_size : is the maximum number of elements in zigzag, keep in mind each zigzag point contains 2 elements, so for example if it's 10 then zigzag has 10/2 => 5 zigzag points
Returns: dir that is the current direction of the zigzag
showZigzag(zigzag, oldzigzag, dir, upcol, dncol) this function shows zigzag
Parameters:
zigzag : is the float array for the zigzag (should be defined like "var zigzag = array.new_float(0)"). each zigzag points contains 2 element: 1. price level of the zz point 2. bar_index of the zz point
oldzigzag : is the float array for the zigzag, you get copy the zigzag array to oldzigzag by "oldzigzag = array.copy(zigzay)" before calling get_zigzag() function
dir : is the direction of the zigzag wave
upcol : is the color of the line if zigzag direction is up
dncol : is the color of the line if zigzag direction is down
Returns: null
MathComplexEvaluateLibrary "MathComplexEvaluate"
TODO: add library description here
is_op(char) Check if char is a operator.
Parameters:
char : string, 1 character string.
Returns: bool.
operator(op, left, right) operation between left and right values.
Parameters:
op : string, operator string character.
left : float, left value of operation.
right : float, right value of operation.
operator_precedence(op) level of precedence of operator.
Parameters:
op : string, operator 1 char string.
Returns: int.
eval() evaluate a string with references to a array of arguments.
| @param tokens string, arithmetic operations with references to indices in arguments, ex:"0+1*0+2*2+3" arguments
| @param arguments float array, arguments.
| @returns float, solution.
MathComplexTrignometryLibrary "MathComplexTrignometry"
Methods for complex number trignometry operations.
sinh(complex) Hyperbolic Sine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
cosh(complex) Hyperbolic cosine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
tanh(complex) Hyperbolic tangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
coth(complex) Hyperbolic cotangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
sech(complex) Hyperbolic Secant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
csch(complex) Hyperbolic Cosecant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
sin(complex) Trigonometric Sine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
cos(complex) Trigonometric cosine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
tan(complex) Trigonometric tangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
cot(complex) Trigonometric cotangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
sec(complex) Trigonometric Secant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
csc(complex) Trigonometric Cosecant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
asin(complex) Trigonometric Arc Sine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
acos(complex) Trigonometric Arc Cosine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
atan(complex) Trigonometric Arc Tangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
acot(complex) Trigonometric Arc Cotangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
asec(complex) Trigonometric Arc Secant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
acsc(complex) Trigonometric Arc Cosecant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
asinh(complex) Hyperbolic Arc Sine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
acosh(complex) Hyperbolic Arc Cosine of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
atanh(complex) Hyperbolic Arc Tangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
acoth(complex) Hyperbolic Arc Cotangent of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
asech(complex) Hyperbolic Arc Secant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
acsch(complex) Hyperbolic Arc Cosecant of complex number.
Parameters:
complex : float array, complex number.
Returns: float array.
MathComplexExtensionLibrary "MathComplexExtension"
A set of utility functions to handle complex numbers.
get_phase(complex_number, in_radians) The phase value of complex number complex_number.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
in_radians : boolean, value for the type of angle value, default=true, options=(true: radians, false: degrees)
Returns: float value with phase.
natural_logarithm(complex_number) Natural logarithm of complex number (base E).
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, complex number.
common_logarithm(complex_number) Common logarithm of complex number (base 10).
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, complex number.
logarithm(complex_number, base) Common logarithm of complex number (custom base).
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
base : float, base value.
Returns: float array, complex number.
power(complex_number, complex_exponent) Raise complex_number with complex_exponent.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
complex_exponent : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
root(complex_number, complex_exponent) Raise complex_number with inverse of complex_exponent.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
complex_exponent : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
square(complex_number) Square of complex_number (power 2).
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
square_root(complex_number) Square root of complex_number (power 1/2).
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
square_roots(complex_number) Square root of complex_number (power 1/2).
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: tuple with 2 complex numbers.
cubic_roots(complex_number) Square root of complex_number (power 1/2).
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: tuple with 2 complex numbers.
to_polar_form(complex_number, in_radians) The polar form value of complex_number.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
in_radians : boolean, value for the type of angle value, default=true, options=(true: radians, false: degrees)
Returns: float array, pseudo complex number in the form of a array
** returns a array
MathComplexOperatorLibrary "MathComplexOperator"
A set of utility functions to handle complex numbers.
conjugate(complex_number) Computes the conjugate of complex_number by reversing the sign of the imaginary part.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
add(complex_number_a, complex_number_b) Adds complex number complex_number_b to complex_number_a, in the form:
.
Parameters:
complex_number_a : pseudo complex number in the form of a array .
complex_number_b : pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
subtract(complex_number_a, complex_number_b) Subtract complex_number_b from complex_number_a, in the form:
.
Parameters:
complex_number_a : float array, pseudo complex number in the form of a array .
complex_number_b : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
multiply(complex_number_a, complex_number_b) Multiply complex_number_a with complex_number_b, in the form:
Parameters:
complex_number_a : float array, pseudo complex number in the form of a array .
complex_number_b : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
divide(complex_number_a, complex_number_b) Divide complex_number _a with _b, in the form:
Parameters:
complex_number_a : float array, pseudo complex number in the form of a array .
complex_number_b : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
reciprocal(complex_number) Computes the reciprocal or inverse of complex_number.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
negative(complex_number) Negative of complex_number, in the form:
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
inverse(complex_number) Inverse of complex_number, in the form:
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
exponential(complex_number) Exponential of complex_number.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: float array, pseudo complex number in the form of a array
ceil(complex_number, digits) Ceils complex_number.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
digits : int, digits to use as ceiling.
Returns: _complex: pseudo complex number in the form of a array
radius(complex_number) Radius(magnitude) of complex_number, in the form:
This is defined as its distance from the origin (0,0) of the complex plane.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float value with radius.
magnitude(complex_number) magnitude(absolute value) of complex_number, should be the same as the radius.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float.
magnitude_squared(complex_number) magnitude(absolute value) of complex_number, should be the same as the radius.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float.
sign(complex_number) Unity of complex numbers.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
Returns: float array, complex number.
MathComplexArrayLibrary "MathComplexArray"
Array methods to handle complex number arrays.
new(size, initial_complex) Prototype to initialize a array of complex numbers.
Parameters:
size : size of the array.
initial_complex : Complex number to be used as default value, in the form of array .
Returns: float array, pseudo complex Array in the form of a array
get(id, index) Get the complex number in a array, in the form of a array
Parameters:
id : float array, ID of the array.
index : int, Index of the complex number.
Returns: float array, pseudo complex number in the form of a array
set(id, index, complex_number) Sets the values complex number in a array.
Parameters:
id : float array, ID of the array.
index : int, Index of the complex number.
complex_number : float array, Complex number, in the form: .
Returns: Void, updates array id.
push(id, complex_number) Push the values into a complex number array.
Parameters:
id : float array, ID of the array.
complex_number : float array, Complex number, in the form: .
Returns: Void, updates array id.
pop(id, complex_number) Pop the values from a complex number array.
Parameters:
id : float array, ID of the array.
complex_number : float array, Complex number, in the form: .
Returns: Void, updates array id.
to_string(id, format) Reads a array of complex numbers into a string, of the form: " [ , ... ]""
Parameters:
id : float array, ID of the array.
format : string, format of the number conversion, default='#.##########'.
Returns: string, translated complex array into string.
MathComplexCoreLibrary "MathComplexCore"
Core functions to handle complex numbers.
set_real(complex_number, real) Set the real part of complex_number.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
real : float, value to replace real value of complex_number.
Returns: Void, Modifies complex_number.
set_imaginary(complex_number, imaginary) Set the imaginary part of complex_number.
Parameters:
complex_number : float array, pseudo complex number in the form of a array .
imaginary : float, value to replace imaginary value of complex_number.
Returns: Void, Modifies complex_number.
new(real, imaginary) Creates a prototype array to handle complex numbers.
Parameters:
real : float, real value of the complex number. default=0.
imaginary : float, imaginary number of the complex number. default=0.
@return float array, pseudo complex number in the form of a array .
zero() complex number "0+0i".
@return float array, pseudo complex number in the form of a array .
one() complex number "1+0i".
@return float array, pseudo complex number in the form of a array .
imaginary_one() complex number "0+1i".
@return float array, pseudo complex number in the form of a array .
nan() complex number "0+1i".
@return float array, pseudo complex number in the form of a array .
from_polar_coordinates(magnitude, phase) Create a complex number from a point's polar coordinates.
Parameters:
magnitude : float, default=0.0, The magnitude, which is the distance from the origin (the intersection of the x-axis and the y-axis) to the number.
phase : float, default=0.0, The phase, which is the angle from the line to the horizontal axis, measured in radians.
@return float array, pseudo complex number in the form of a array .
get_real(complex_number) Get the real part of complex_number.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: float, Real part of the complex_number.
get_imaginary(complex_number) Get the imaginary part of complex_number.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: float, Imaginary part of the complex number.
is_complex(complex_number) Checks that its a valid complex_number.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: bool.
is_nan(complex_number) Checks that its empty "na" complex_number.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: bool.
is_real(complex_number) Checks that the complex_number is real.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: bool.
is_real_non_negative(complex_number) Checks that the complex_number is real and not negative.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: bool.
is_zero(complex_number) Checks that the complex_number is zero.
Parameters:
complex_number : pseudo complex number in the form of a array .
Returns: bool.
equals(complex_number_a, complex_number_b) Compares two complex numbers:
Parameters:
complex_number_a : float array, pseudo complex number in the form of a array .
complex_number_b : float array, pseudo complex number in the form of a array .
Returns: boolean value representing the equality.
to_string(complex, format) Converts complex_number to a string format, in the form: "a+bi"
Parameters:
complex : pseudo complex number in the form of a array .
format : string, formating to apply.
Returns: a string in "a+bi" format
FunctionBestFitFrequencyLibrary "FunctionBestFitFrequency"
TODO: add library description here
array_moving_average(sample, length, ommit_initial, fillna) Moving Average values for selected data.
Parameters:
sample : float array, sample data values.
length : int, length to smooth the data.
ommit_initial : bool, default=true, ommit values at the start of the data under the length.
fillna : string, default='na', options='na', '0', 'avg'
Returns: float array
errors:
length > sample size "Canot call array methods when id of array is na."
best_fit_frequency(sample, start, end) Search a frequency range for the fairest moving average frequency.
Parameters:
sample : float array, sample data to based the moving averages.
start : int lowest frequency.
end : int highest frequency.
Returns: tuple with (int frequency, float percentage)
ArrayStatisticsLibrary "ArrayStatistics"
Statistic Functions using arrays.
rms(sample) Root Mean Squared
Parameters:
sample : float array, data sample points.
Returns: float
skewness_pearson1(sample) Pearson's 1st Coefficient of Skewness.
Parameters:
sample : float array, data sample.
Returns: float
skewness_pearson2(sample) Pearson's 2nd Coefficient of Skewness.
Parameters:
sample : float array, data sample.
Returns: float
pearsonr(sample_a, sample_b) Pearson correlation coefficient measures the linear relationship between two datasets.
Parameters:
sample_a : float array, sample with data.
sample_b : float array, sample with data.
Returns: float p
kurtosis(sample) Kurtosis of distribution.
Parameters:
sample : float array, data sample.
Returns: float
range_int(sample, percent) Get range around median containing specified percentage of values.
Parameters:
sample : int array, Histogram array.
percent : float, Values percentage around median.
Returns: tuple with , Returns the range which containes specifies percentage of values.
ArrayOperationsIntLibrary "ArrayOperationsInt"
Array Basic Operations for Integers
add(sample_a, sample_b) Adds sample_b to sample_a and returns a new array.
Parameters:
sample_a : values to be added to.
sample_b : values to add.
Returns: int array with added results.
subtract(sample_a, sample_b) subtracts sample_b from sample_a and returns a new array.
Parameters:
sample_a : values to be subtracted from.
sample_b : values to subtract.
Returns: int array with subtracted results.
multiply(sample_a, sample_b) multiply sample_a with sample_b and returns a new array.
Parameters:
sample_a : values to multiply.
sample_b : values to multiply with.
Returns: int array with multiplied results.
divide(sample_a, sample_b) divide sample_a with sample_b and returns a new array.
Parameters:
sample_a : values to divide.
sample_b : values to divide with.
Returns: int array with divided results.
power(sample_a, sample_b) rise sample_a to the power of sample_b and returns a new array.
Parameters:
sample_a : base values to raise.
sample_b : values of exponents.
Returns: int array with raised results.
remainder(sample_a, sample_b) integer remainder of sample_a under the dividend sample_b and returns a new array.
Parameters:
sample_a : values of quotients.
sample_b : values of dividends.
Returns: int array with remainder results.
ArrayOperationsFloatLibrary "ArrayOperationsFloat"
Array Basic Operations for Integers
add(sample_a, sample_b) Adds sample_b to sample_a and returns a new array.
Parameters:
sample_a : values to be added to.
sample_b : values to add.
Returns: float array with added results.
subtract(sample_a, sample_b) subtracts sample_b from sample_a and returns a new array.
Parameters:
sample_a : values to be subtracted from.
sample_b : values to subtract.
Returns: float array with subtracted results.
multiply(sample_a, sample_b) multiply sample_a with sample_b and returns a new array.
Parameters:
sample_a : values to multiply.
sample_b : values to multiply with.
Returns: float array with multiplied results.
divide(sample_a, sample_b) divide sample_a with sample_b and returns a new array.
Parameters:
sample_a : values to divide.
sample_b : values to divide with.
Returns: float array with divided results.
power(sample_a, sample_b) rise sample_a to the power of sample_b and returns a new array.
Parameters:
sample_a : base values to raise.
sample_b : values of exponents.
Returns: float array with raised results.
remainder(sample_a, sample_b) float remainder of sample_a under the dividend sample_b and returns a new array.
Parameters:
sample_a : values of quotients.
sample_b : values of dividends.
Returns: float array with remainder results.
bursamalaysianonshariahLibrary "bursamalaysianonshariah"
List of non-Shariah stock for Bursa Malaysia as of Oct 2021
No parameter required
status() will return 1 if ticker in the list, 0 if ticker not in the list and 2 if ticker not from Bursa Malaysia
Example usage :
//@version=5
indicator("My Script", overlay = true)
import BURSATRENDBANDCHART/bursamalaysianonshariah/1 as b
bgcolor(status() == 1 ? color.new(color.red, 90) : status() == 0 ? color.new(color.green, 90) : color.new(color.blue, 90))
Special thanks to
wmsafwan
RozaniGhani-RG
Vector2OperationsLibrary "Vector2Operations"
functions to handle vector2 operations.
math_fractional(_value) computes the fractional part of the argument value.
Parameters:
_value : float, value to compute.
Returns: float, fractional part.
atan2(_a) Approximation to atan2 calculation, arc tangent of y/ x in the range radians.
Parameters:
_a : vector2 in the form of a array .
Returns: float, value with angle in radians. (negative if quadrante 3 or 4)
set_x(_a, _value) Set the x value of vector _a.
Parameters:
_a : vector2 in the form of a array .
_value : value to replace x value of _a.
Returns: void Modifies vector _a.
set_y(_a, _value) Set the y value of vector _a.
Parameters:
_a : vector in the form of a array .
_value : value to replace y value of _a.
Returns: void Modifies vector _a.
get_x(_a) Get the x value of vector _a.
Parameters:
_a : vector in the form of a array .
Returns: float, x value of the vector _a.
get_y(_a) Get the y value of vector _a.
Parameters:
_a : vector in the form of a array .
Returns: float, y value of the vector _a.
get_xy(_a) Return the tuple of vector _a in the form
Parameters:
_a : vector2 in the form of a array .
Returns:
length_squared(_a) Length of vector _a in the form. , for comparing vectors this is computationaly lighter.
Parameters:
_a : vector in the form of a array .
Returns: float, squared length of vector.
length(_a) Magnitude of vector _a in the form.
Parameters:
_a : vector in the form of a array .
Returns: float, Squared length of vector.
vmin(_a) Lowest element of vector.
Parameters:
_a : vector in the form of a array .
Returns: float
vmax(_a) Highest element of vector.
Parameters:
_a : vector in the form of a array .
Returns: float
from(_value) Assigns value to a new vector x,y elements.
Parameters:
_value : x and y value of the vector. optional.
Returns: float vector.
new(_x, _y) Creates a prototype array to handle vectors.
Parameters:
_x : float, x value of the vector. optional.
_y : float, y number of the vector. optional.
Returns: float vector.
down() Vector in the form . Returns: float vector.
left() Vector in the form . Returns: float vector.
one() Vector in the form . Returns: float vector.
right() Vector in the form . Returns: float vector
up() Vector in the form . Returns: float vector
zero() Vector in the form . Returns: float vector
add(_a, _b) Adds vector _b to _a, in the form
.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns:
subtract(_a, _b) Subtract vector _b from _a, in the form
.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns:
multiply(_a, _b) Multiply vector _a with _b, in the form
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns:
divide(_a, _b) Divide vector _a with _b, in the form
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns:
negate(_a) Negative of vector _a, in the form
Parameters:
_a : vector in the form of a array .
Returns:
perp(_a) Perpendicular Vector of _a.
Parameters:
_a : vector in the form of a array .
Returns:
vfloor(_a) Compute the floor of argument vector _a.
Parameters:
_a : vector in the form of a array .
Returns:
fractional(_a) Compute the fractional part of the elements from vector _a.
Parameters:
_a : vector in the form of a array .
Returns:
vsin(_a) Compute the sine of argument vector _a.
Parameters:
_a : vector in the form of a array .
Returns:
equals(_a, _b) Compares two vectors
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: boolean value representing the equality.
dot(_a, _b) Dot product of 2 vectors, in the form
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float
cross_product(_a, _b) cross product of 2 vectors, in the form
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float
scale(_a, _scalar) Multiply a vector by a scalar.
Parameters:
_a : vector in the form of a array .
_scalar : value to multiply vector elements by.
Returns: float vector
normalize(_a) Vector _a normalized with a magnitude of 1, in the form.
Parameters:
_a : vector in the form of a array .
Returns: float vector
rescale(_a) Rescale a vector to a new Magnitude.
Parameters:
_a : vector in the form of a array .
Returns:
rotate(_a, _radians) Rotates vector _a by angle value
Parameters:
_a : vector in the form of a array .
_radians : Angle value.
Returns:
rotate_degree(_a, _degree) Rotates vector _a by angle value
Parameters:
_a : vector in the form of a array .
_degree : Angle value.
Returns:
rotate_around(_center, _target, _degree) Rotates vector _target around _origin by angle value
Parameters:
_center : vector in the form of a array .
_target : vector in the form of a array .
_degree : Angle value.
Returns:
vceil(_a, _digits) Ceils vector _a
Parameters:
_a : vector in the form of a array .
_digits : digits to use as ceiling.
Returns:
vpow(_a) Raise both vector elements by a exponent.
Parameters:
_a : vector in the form of a array .
Returns:
distance(_a, _b) vector distance between 2 vectors.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float, distance.
project(_a, _axis) Project a vector onto another.
Parameters:
_a : vector in the form of a array .
_axis : float vector2
Returns: float vector
projectN(_a, _axis) Project a vector onto a vector of unit length.
Parameters:
_a : vector in the form of a array .
_axis : vector in the form of a array .
Returns: float vector
reflect(_a, _b) Reflect a vector on another.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float vector
reflectN(_a, _b) Reflect a vector to a arbitrary axis.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float vector
angle(_a) Angle in radians of a vector.
Parameters:
_a : vector in the form of a array .
Returns: float
angle_unsigned(_a, _b) unsigned degree angle between 0 and +180 by given two vectors.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float
angle_signed(_a, _b) Signed degree angle between -180 and +180 by given two vectors.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float
angle_360(_a, _b) Degree angle between 0 and 360 by given two vectors
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
Returns: float
clamp(_a, _vmin, _vmax) Restricts a vector between a min and max value.
Parameters:
_a : vector in the form of a array .
_vmin : vector in the form of a array .
_vmax : vector in the form of a array .
Returns: float vector
lerp(_a, _b, _rate_of_move) Linearly interpolates between vectors a and b by _rate_of_move.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
_rate_of_move : float value between (a:-infinity -> b:1.0), negative values will move away from b.
Returns: vector in the form of a array
herp(_a, _b, _rate_of_move) Hermite curve interpolation between vectors a and b by _rate_of_move.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
_rate_of_move : float value between (a-infinity -> b1.0), negative values will move away from b.
Returns: vector in the form of a array
area_triangle(_a, _b, _c) Find the area in a triangle of vectors.
Parameters:
_a : vector in the form of a array .
_b : vector in the form of a array .
_c : vector in the form of a array .
Returns: float
to_string(_a) Converts vector _a to a string format, in the form "(x, y)"
Parameters:
_a : vector in the form of a array .
Returns: string in "(x, y)" format
vrandom(_max) 2D random value
Parameters:
_max : float vector, vector upper bound
Returns: vector in the form of a array
noise(_a) 2D Noise based on Morgan McGuire @morgan3d
thebookofshaders.com
www.shadertoy.com
Parameters:
_a : vector in the form of a array .
Returns: vector in the form of a array
array_new(_size, _initial_vector) Prototype to initialize a array of vectors.
Parameters:
_size : size of the array.
_initial_vector : vector to be used as default value, in the form of array .
Returns: _vector_array complex Array in the form of a array
array_size(_id) number of vector elements in array.
Parameters:
_id : ID of the array.
Returns: int
array_get(_id, _index) Get the vector in a array, in the form of a array
Parameters:
_id : ID of the array.
_index : Index of the vector.
Returns: vector in the form of a array
array_set(_id, _index, _a) Sets the values vector in a array.
Parameters:
_id : ID of the array.
_index : Index of the vector.
_a : vector, in the form .
Returns: Void, updates array _id.
array_push(_id, _a) inserts the vector at the end of array.
Parameters:
_id : ID of the array.
_a : vector, in the form .
Returns: Void, updates array _id.
array_unshift(_id, _a) inserts the vector at the begining of array.
Parameters:
_id : ID of the array.
_a : vector, in the form .
Returns: Void, updates array _id.
array_pop(_id, _a) removes the last vector of array and returns it.
Parameters:
_id : ID of the array.
_a : vector, in the form .
Returns: vector2, updates array _id.
array_shift(_id, _a) removes the first vector of array and returns it.
Parameters:
_id : ID of the array.
_a : vector, in the form .
Returns: vector2, updates array _id.
array_sum(_id) Total sum of all vectors.
Parameters:
_id : ID of the array.
Returns: vector in the form of a array
array_center(_id) Finds the vector center of the array.
Parameters:
_id : ID of the array.
Returns: vector in the form of a array
array_rotate_points(_id) Rotate Array vectors around origin vector by a angle.
Parameters:
_id : ID of the array.
Returns: rotated points array.
array_scale_points(_id) Scale Array vectors based on a origin vector perspective.
Parameters:
_id : ID of the array.
Returns: rotated points array.
array_tostring(_id, _separator) Reads a array of vectors into a string, of the form " ""
Parameters:
_id : ID of the array.
_separator : string separator for cell splitting.
Returns: string Translated complex array into string.
line_new(_a, _b) 2 vector line in the form.
Parameters:
_a : vector, in the form .
_b : vector, in the form .
Returns:
line_get_a(_line) Start vector of a line.
Parameters:
_line : vector4, in the form .
Returns: float vector2
line_get_b(_line) End vector of a line.
Parameters:
_line : vector4, in the form .
Returns: float vector2
line_intersect(_line1, _line2) Find the intersection vector of 2 lines.
Parameters:
_line1 : line of 2 vectors in the form of a array .
_line2 : line of 2 vectors in the form of a array .
Returns: vector in the form of a array .
draw_line(_line, _xloc, _extend, _color, _style, _width) Draws a line using line prototype.
Parameters:
_line : vector4, in the form .
_xloc : string
_extend : string
_color : color
_style : string
_width : int
Returns: draw line object
draw_triangle(_v1, _v2, _v3, _xloc, _color, _style, _width) Draws a triangle using line prototype.
Parameters:
_v1 : vector4, in the form .
_v2 : vector4, in the form .
_v3 : vector4, in the form .
_xloc : string
_color : color
_style : string
_width : int
Returns: tuple with 3 line objects.
draw_rect(_v1, _size, _angle, _xloc, _color, _style, _width) Draws a square using vector2 line prototype.
Parameters:
_v1 : vector4, in the form .
_size : float
_angle : float
_xloc : string
_color : color
_style : string
_width : int
Returns: tuple with 3 line objects.
SignalProcessingClusteringKMeansLibrary "SignalProcessingClusteringKMeans"
K-Means Clustering Method.
nearest(point_x, point_y, centers_x, centers_y) finds the nearest center to a point and returns its distance and center index.
Parameters:
point_x : float, x coordinate of point.
point_y : float, y coordinate of point.
centers_x : float array, x coordinates of cluster centers.
centers_y : float array, y coordinates of cluster centers.
@ returns tuple of int, float.
bisection_search(samples, value) Bissection Search
Parameters:
samples : float array, weights to compare.
value : float array, weights to compare.
Returns: int.
label_points(points_x, points_y, centers_x, centers_y) labels each point index with cluster index and distance.
Parameters:
points_x : float array, x coordinates of points.
points_y : float array, y coordinates of points.
centers_x : float array, x coordinates of points.
centers_y : float array, y coordinates of points.
Returns: tuple with int array, float array.
kpp(points_x, points_y, n_clusters) K-Means++ Clustering adapted from Andy Allinger.
Parameters:
points_x : float array, x coordinates of the points.
points_y : float array, y coordinates of the points.
n_clusters : int, number of clusters.
Returns: tuple with 2 arrays, float array, int array.
