This Indicator has been taken from the book Bollinger on Bollinger Bands.
The fundamental idea is to have a direct relationship with volatility.
The RSI is normalized around a mean calculated with 2 times standard deviation.
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//*
//* Se normaliza el RSI dado un numero: Por defecto es igual que el RSI
//* Autor: Rafa Barreto
//*
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ValorRSI=14
MiRSI = RSI[ValorRSI](Close)
Bollinger2UpRSI = ExponentialAverage[ValorEMA](MiRSI) + (2 * STD[ValorEMA](MiRSI))
Bollinger2DnRSI = ExponentialAverage[ValorEMA](MiRSI) - (2 * STD[ValorEMA](MiRSI))
RSINormalizado = (MiRSI - Bollinger2DnRSI) / (Bollinger2UpRSI - Bollinger2DnRSI)
Return RSINormalizado