//      CCI     //
lenCCI = input(20, "CCI Length")
typicalPriceMA = ta.sma( hlc3, lenCCI )
meanDevCCI = math.sum( math.abs(hlc3-typicalPriceMA), lenCCI ) / lenCCI
cci = ( hlc3 - typicalPriceMA) / ( .015 * meanDevCCI )
cciTV = ta.cci( close,lenCCI )