[RS]Linear Regression Bull and Bear Power V0

Bull and Bear power based on linear regression (this is a non lagging oscillator, the parameter are for the lookup window for the donchian extremes)
this indicator can also be used for convergence/divergence.
Skrip open-source

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

Inggin menggunakan skrip ini pada chart?
study(title='[RS]Linear Regression Bull and Bear Power V0', shorttitle='BBP', overlay=false)
window = input(title='Lookback Window:', type=integer, defval=10)

f_exp_lr(_height, _length)=>
    _ret = _height + (_height/_length)

h_value = highest(close, window)
l_value = lowest(close, window)

h_bar = n-highestbars(close, window)
l_bar = n-lowestbars(close, window)

bear = 0-f_exp_lr(h_value-close, n-h_bar)
bull = 0+f_exp_lr(close-l_value, n-l_bar)

plot(title='Bear', series=bear, style=columns, color=maroon)
plot(title='Bull', series=bull, style=columns, color=green)