Oscillator Historical Volatility Ratio is a volatility indicator based on the "yesterday" / "today" price ratio
It has four configurable parameters:
Calculation:
HVR = StdDev1 / StdDev2
where:
StdDev1(ST) - standard deviation with the First deviation period
StdDev2(ST) - standard deviation with the Second deviation period
ST = LOG(Price/PrevPrice)

MetaQuotes Ltd tarafından Rusçadan çevrilmiştir.
Orijinal kod: https://www.mql5.com/ru/code/20981
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