Oscillator Wilder's RSI is a normal RSI smoothed by Welles Wilder's moving average.
It has four configurable parameters:
In terms of calculations, Wilder's moving average is similar to a normal EMA:
<span id="MathJax-Element-126-Frame" class="MathJax" tabindex="0" data-mathml="WWMA(n)=EMA(2n−1)">WWMA(n) = EMA(2n−1)
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/21336