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How to program the following formula into QD
http://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
//amibroker
PPF=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.

Kreangast
2013/6/15
Baraz 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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