The Fast Stochastic oscillator shows in a separate window a stochastic calculated as follows:
FSK[i] = (min / max) * 100.0,
FSD[i] = SMA(FSK,PeriodD)
where:
min = close[i] - low[BL], max = high[BH] - low[BL], BH is the highest price index within the range from PeriodK to i, BL is the lowest price index within the range from PeriodK to i,
if max = 0,
FSK[i] = 50.0
The indicator has four input parameters:

MetaQuotes Ltd tarafından Rusçadan çevrilmiştir.
Orijinal kod: https://www.mql5.com/ru/code/20570