% Above/Below EMA

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//  Copyright by michaelandrewhart, 8/18/15
// Percent difference between price and MA
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study(title="Percent difference between price and MA")
Length = input(250, minval=1)
xEMA = ema(close, Length)
nRes = (close - xEMA) * 100 / close
plot(nRes, color=blue, title="PD MA")
h0 = hline(10)
h1 = hline(0)
h2 = hline(-10)
fill(h0, h1, color=green, transp=80)
fill(h1, h2, color=red, transp=80)