Source: https://fxcodebase.com/code/viewtopic.php?f=17&t=11068
Forum: 17 · Topic 11068 · 2 post(s)
Alexander.Gettinger · Fri Jan 06, 2012 3:52 am
The oscillator represents the Williams’ Percent Range calculated on the (High-Low).
Formula: WPR_HL[i]=-100*(Max-HL[i])/(Max-Min), where HL[i]=High[i]-Low[i], Max and Min - maximum and minimum prices at range from (i-Period) to (i).

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Apprentice · Tue Mar 13, 2018 11:13 am
The Indicator was revised and updated.