FSK (Fast and Slow Kurtosis)

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//  Copyright by HPotter v1.0 26/06/2014
// This indicator plots the Fast & Slow Kurtosis. The Kurtosis is a market
// sentiment indicator. The Kurtosis is constructed from three different parts.
// The Kurtosis, the Fast Kurtosis(FK), and the Fast/Slow Kurtosis(FSK).
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study(title="FSK (Fast and Slow Kurtosis)", shorttitle="FSK (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, 3)
plot(xMOM_RAvr, color=blue, title="FK")
plot(xMOM_RWAvr, color=red, title="FSK")