PINE LIBRARY
已更新 JohnEhlersFourierTransform
Library "JohnEhlersFourierTransform"
Fourier Transform for Traders By John Ehlers, slightly modified to allow to inspect other than the 8-50 frequency spectrum.
reference:
mesasoftware.com/papers/FourierTransformForTraders.pdf
high_pass_filter(source) Detrended version of the data by High Pass Filtering with a 40 Period cutoff
Parameters:
source: float, data source.
Returns: float.
transformed_dft(source, start_frequency, end_frequency) DFT by John Elhers.
Parameters:
source: float, data source.
start_frequency: int, lower bound of the frequency window, must be a positive number >= 0, window must be less than or 30.
end_frequency: int, upper bound of the frequency window, must be a positive number >= 0, window must be less than or 30.
Returns: tuple with float, float array.
db_to_rgb(db, transparency) converts the frequency decibels to rgb.
Parameters:
db: float, decibels value.
transparency: float, transparency value.
Returns: color.
Fourier Transform for Traders By John Ehlers, slightly modified to allow to inspect other than the 8-50 frequency spectrum.
reference:
mesasoftware.com/papers/FourierTransformForTraders.pdf
high_pass_filter(source) Detrended version of the data by High Pass Filtering with a 40 Period cutoff
Parameters:
source: float, data source.
Returns: float.
transformed_dft(source, start_frequency, end_frequency) DFT by John Elhers.
Parameters:
source: float, data source.
start_frequency: int, lower bound of the frequency window, must be a positive number >= 0, window must be less than or 30.
end_frequency: int, upper bound of the frequency window, must be a positive number >= 0, window must be less than or 30.
Returns: tuple with float, float array.
db_to_rgb(db, transparency) converts the frequency decibels to rgb.
Parameters:
db: float, decibels value.
transparency: float, transparency value.
Returns: color.
版本注释
v2 removed the upper limit for the function, corrected a typo in the code, thanks to Al-M for spotting it :)版本注释
v3 - another typo bytes the dust.. tump tump tump oO", nicely spoted by Al-M :)版本注释
v4 fixed the preview chart..Pine脚本库
本着真正的TradingView精神，作者将此Pine代码发布为开源库，以便我们社区的其他Pine程序员可以重复使用它。向作者致敬！您可以私密或在其他开源出版物中使用此库，但在出版物中重复使用此代码受网站规则约束。
免责声明
这些信息和出版物并不意味着也不构成TradingView提供或认可的金融、投资、交易或其它类型的建议或背书。请在使用条款阅读更多信息。
Pine脚本库
本着真正的TradingView精神，作者将此Pine代码发布为开源库，以便我们社区的其他Pine程序员可以重复使用它。向作者致敬！您可以私密或在其他开源出版物中使用此库，但在出版物中重复使用此代码受网站规则约束。
免责声明
这些信息和出版物并不意味着也不构成TradingView提供或认可的金融、投资、交易或其它类型的建议或背书。请在使用条款阅读更多信息。