Efficiency Ratio TimePeriods := Input("Time periods",1,10000,10); (Abs(CLOSE - Ref(CLOSE,-TimePeriods))) / (Sum(Abs(CLOSE-Ref(CLOSE,-1)),TimePeriods)) i wnat to use this formula as filter,,which gives me alert to buy when the curve value is -0.5or less...and sell signal when curve value is +0.5 or greater,,,in both eod /and intra renu |