FSRS - Fast and Slow Kurtosis Modification

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//  Copyright by HPotter v1.0 27/06/2014
// FSRS is the modification of FSK indicator. It uses RSI in the calculation.
// The FSRS (Fast & Slow RSI) is constructed from five different parts. 
// The Kurtosis, the Fast Kurtosis(FK), the Fast/Slow Kurtosis(FSK), FSRS and Weighted FSRS.
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study(title="FSRS (Fast and Slow Kurtosis)", shorttitle="FSRS (Fast and Slow Kurtosis)")
BuyZone = input(0)
hline(BuyZone, color=green, linestyle=line)
xMOM_R = mom(mom(close, 3), 1)
xMOM_RAvr = ema(xMOM_R, 65)
xMOM_RWAvr = wma(xMOM_RAvr, 6)
xRSI = rsi(close, 9)
xVal5 = 10000 * xMOM_RWAvr + xRSI
xVal6 = wma(xVal5, 6)
plot(xVal5, color=blue, title="BZ")
plot(xVal6, color=red, title="FSRS")