SmartQuant Discussionhttp://www.smartquant.com/forums/ How to program the following formula into QDhttp://www.smartquant.com/forums/viewtopic.php?f=44&t=10528 Page 1 of 1

 Author: Kreangast [ Fri Jun 14, 2013 4:18 pm ] Post subject: How to program the following formula into QD //amibrokerPPF=Ref(H1,barslast(A1));//barslast(x): count the period number since the last x != 0.//

 Author: Baraz Sergey [ Sat Jun 15, 2013 3:30 am ] Post subject: Re: How to program the following formula into QD Hi,I am not familar with amibroker syntax, but in OQ it looks something like this:Quote:using System;using System.Drawing;using OpenQuant.API;using OpenQuant.API.Indicators;public class MyStrategy : Strategy{ double lastPPFWhenA1IsZero = double.NaN; public override void OnBar(Bar bar) { if (Bars.Count < 20) return; double TR= Math.Max(Math.Max((bar.High-bar.Low),Math.Abs(Bars.Ago(1).Close-bar.High)),Math.Abs(Bars.Ago(1).Close-bar.Low)); bool A1 = bar.High == Bars.HighestHigh(20); double H1=TR*0.5; if (!A1) lastPPFWhenA1IsZero = H1; double PPF=lastPPFWhenA1IsZero; Console.WriteLine(bar + " PPF = " + PPF); }}Regards,Sergey.

 Author: Kreangast [ Sat Jun 15, 2013 10:13 am ] Post subject: Re: How to program the following formula into QD Hi Baraz Sergey Thank you very much!But I do not quite understand,Ref(),BarsLast(),C # statement to express,Indicators are invoked with multi-cycle values ​​written in C # how.Thank explain my puzzled.Kreangast2013/6/15Baraz Sergey wrote:Hi,I am not familar with amibroker syntax, but in OQ it looks something like this:Quote:using System;using System.Drawing;using OpenQuant.API;using OpenQuant.API.Indicators;public class MyStrategy : Strategy{ double lastPPFWhenA1IsZero = double.NaN; public override void OnBar(Bar bar) { if (Bars.Count < 20) return; double TR= Math.Max(Math.Max((bar.High-bar.Low),Math.Abs(Bars.Ago(1).Close-bar.High)),Math.Abs(Bars.Ago(1).Close-bar.Low)); bool A1 = bar.High == Bars.HighestHigh(20); double H1=TR*0.5; if (!A1) lastPPFWhenA1IsZero = H1; double PPF=lastPPFWhenA1IsZero; Console.WriteLine(bar + " PPF = " + PPF); }}Regards,Sergey.

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