Three Inside Down automatic finding script

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//  Copyright by HPotter v1.0 04/04/2014
//    This is a three candlestick bearish reversal pattern consisting of a bearish 
//    harami pattern formed by the first 2 candlesticks then followed by down 
//    candlestick with a lower close than the prior candlestick.
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study(title = "Three Inside Down", overlay = true)
barcolor(close[2] > open[2] ? open[1] > close[1] ? open[1] <= close[2] ? open[2] <= close[1] ? open[1] - close[1]< close[2] - open[2] ? close < open ? close < close[1] ? open < open[1] ? close < open[2] ? yellow :na :na : na : na : na:na : na : na : na)