PINE LIBRARY
Spectrum

Library "Spectrum"
This library includes spectrum analysis tools such as the Fast Fourier Transform (FFT).

method toComplex(data, polar)
Creates an array of complex type objects from a float type array.
Namespace types: array<float>
Parameters:
data (array<float>): The float type array of input data.
polar (bool): Initialization coordinates; the default is false (cartesian).
Returns: The complex type array of converted data.
method sAdd(data, value, end, start, step)
Performs scalar addition of a given float type array and a simple float value.
Namespace types: array<float>
Parameters:
data (array<float>): The float type array of input data.
value (float): The simple float type value to be added.
end (int): The last index of the input array (exclusive) on which the operation is performed.
start (int): The first index of the input array (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified input array.
method sMult(data, value, end, start, step)
Performs scalar multiplication of a given float type array and a simple float value.
Namespace types: array<float>
Parameters:
data (array<float>): The float type array of input data.
value (float): The simple float type value to be added.
end (int): The last index of the input array (exclusive) on which the operation is performed.
start (int): The first index of the input array (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified input array.
method eMult(data, data02, end, start, step)
Performs elementwise multiplication of two given complex type arrays.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): the first complex type array of input data.
data02 (array<complex> type from RezzaHmt/Complex/1): The second complex type array of input data.
end (int): The last index of the input arrays (exclusive) on which the operation is performed.
start (int): The first index of the input arrays (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified first input array.
method eCon(data, end, start, step)
Performs elementwise conjugation on a given complex type array.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
end (int): The last index of the input array (exclusive) on which the operation is performed.
start (int): The first index of the input array (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified input array.
method zeros(length)
Creates a complex type array of zeros.
Namespace types: series int, simple int, input int, const int
Parameters:
length (int): The size of array to be created.
method bitReverse(data)
Rearranges a complex type array based on the bit-reverse permutations of its size after zero-padding.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
Returns: The modified input array.
method R2FFT(data, inverse)
Calculates Fourier Transform of a time series using Cooley-Tukey Radix-2 Decimation in Time FFT algorithm, wikipedia.org/wiki/Cooley–Tukey_FFT_algorithm.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
inverse (int): Set to -1 for FFT and to 1 for iFFT.
Returns: The modified input array containing the FFT result.
method LBFFT(data, inverse)
Calculates Fourier Transform of a time series using Leo Bluestein's FFT algorithm, wikipedia.org/wiki/Chirp_Z-transform This function is nearly 4 times slower than the R2FFT function in practice.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
inverse (int): Set to -1 for FFT and to 1 for iFFT.
Returns: The modified input array containing the FFT result.
method DFT(data, inverse)
This is the original DFT algorithm. It is not suggested to be used regularly.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
inverse (int): Set to -1 for DFT and to 1 for iDFT.
Returns: The complex type array of DFT result.
This library includes spectrum analysis tools such as the Fast Fourier Transform (FFT).
method toComplex(data, polar)
Creates an array of complex type objects from a float type array.
Namespace types: array<float>
Parameters:
data (array<float>): The float type array of input data.
polar (bool): Initialization coordinates; the default is false (cartesian).
Returns: The complex type array of converted data.
method sAdd(data, value, end, start, step)
Performs scalar addition of a given float type array and a simple float value.
Namespace types: array<float>
Parameters:
data (array<float>): The float type array of input data.
value (float): The simple float type value to be added.
end (int): The last index of the input array (exclusive) on which the operation is performed.
start (int): The first index of the input array (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified input array.
method sMult(data, value, end, start, step)
Performs scalar multiplication of a given float type array and a simple float value.
Namespace types: array<float>
Parameters:
data (array<float>): The float type array of input data.
value (float): The simple float type value to be added.
end (int): The last index of the input array (exclusive) on which the operation is performed.
start (int): The first index of the input array (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified input array.
method eMult(data, data02, end, start, step)
Performs elementwise multiplication of two given complex type arrays.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): the first complex type array of input data.
data02 (array<complex> type from RezzaHmt/Complex/1): The second complex type array of input data.
end (int): The last index of the input arrays (exclusive) on which the operation is performed.
start (int): The first index of the input arrays (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified first input array.
method eCon(data, end, start, step)
Performs elementwise conjugation on a given complex type array.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
end (int): The last index of the input array (exclusive) on which the operation is performed.
start (int): The first index of the input array (inclusive) on which the operation is performed; the default value is 0.
step (int): The step by which the function iterates over the input data array between the specified boundaries; the default value is 1.
Returns: The modified input array.
method zeros(length)
Creates a complex type array of zeros.
Namespace types: series int, simple int, input int, const int
Parameters:
length (int): The size of array to be created.
method bitReverse(data)
Rearranges a complex type array based on the bit-reverse permutations of its size after zero-padding.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
Returns: The modified input array.
method R2FFT(data, inverse)
Calculates Fourier Transform of a time series using Cooley-Tukey Radix-2 Decimation in Time FFT algorithm, wikipedia.org/wiki/Cooley–Tukey_FFT_algorithm.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
inverse (int): Set to -1 for FFT and to 1 for iFFT.
Returns: The modified input array containing the FFT result.
method LBFFT(data, inverse)
Calculates Fourier Transform of a time series using Leo Bluestein's FFT algorithm, wikipedia.org/wiki/Chirp_Z-transform This function is nearly 4 times slower than the R2FFT function in practice.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
inverse (int): Set to -1 for FFT and to 1 for iFFT.
Returns: The modified input array containing the FFT result.
method DFT(data, inverse)
This is the original DFT algorithm. It is not suggested to be used regularly.
Namespace types: array<cx.complex>
Parameters:
data (array<complex> type from RezzaHmt/Complex/1): The complex type array of input data.
inverse (int): Set to -1 for DFT and to 1 for iDFT.
Returns: The complex type array of DFT result.
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Pine腳本庫
秉持 TradingView 一貫的共享精神,作者將此 Pine 程式碼發佈為開源庫,讓社群中的其他 Pine 程式設計師能夠重複使用。向作者致敬!您可以在私人專案或其他開源發佈中使用此庫,但在公開發佈中重複使用該程式碼需遵守社群規範。
免責聲明
這些資訊和出版物並不意味著也不構成TradingView提供或認可的金融、投資、交易或其他類型的意見或建議。請在使用條款閱讀更多資訊。