Combination of 4 RSI values (RSI of High, Low, Open and Close) displayed as candles. This version has additional option to enable prices pre-smoothing prior to be used in calculation, which makes it an RSI-of-MA combination. To avoid prices pre-smoothing, use smoothing pe...
from https://tradingrobots.net/rsi-candles-smoothed-indicator-for-metatrader-5/