Create Standard Deviation for Linear Regression

[enilno]

I needed to have standard deviation for linear regression and there was not function for it. so i coded it and if you like you can edit it and add to next version.

def stdevlinreg(close, length: int):
    x_value = close
    stdev = close
    slope = ta.linreg(close=close, length=length, slope=True)
    tsf = ta.linreg(close=close, length=length, tsf=True)
    variance = 0
    for i in range(1, length):
        variance += (x_value.shift(i) - (tsf - i * slope)) ** 2
    stdev = (variance / (length - 1)) ** 0.5
    return stdev

so we can now use it as:
df['stdlinreg'] = stdevlinreg(df['close'], length=15)
and if add to 'linreg' it can be like:
df['stdlinreg'] = ta.linreg(df['close'], length=15, stdev=True)

[mobley-trent]

@twopirllc please assign me this issue

[twopirllc]

Hello @mobley-trent,

Assignment unnecessary, contributions are always welcome. 😎
Checkout the development branch.
Edit and submit a PR and I'll get to it as soon as I can.