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Thanks Anthony,
That's great, but is there anyway of putting it in an indicator so it
draws a line?
I've got this far -
/* Draw a line from Close 120 days ago to Close today */
y0 = 0.9; // Can't work out how to get close on day -120
y1 = 1.2; // Can't work out how to get close on last day
x1 = LastValue( Cum( 1 ) );
x0 = x1 - 120;
Line = LineArray( x0, y0, x1, y1, 0 );
Plot(C, "C", colorWhite, styleCandle);
Plot( Line, "Trend line", colorBlue );
--- In amibroker@xxxxxxxxxxxxxxx, "Anthony Faragasso" <ajf1111@xxxx>
wrote:
> Peter,
>
> AA window:
> Monthly rate of change
> You can use the Param button in AA to select number of months
> n last quotations
> n=1
>
> //Monthly Rate of Change summed
>
> MROC = ROC( C, 21 );//approx 21 trading days per month
>
> Months=Param("Months",6,1,12,1);
>
>
> function GetSumOfMonthlyROC( array, howmanyMonths )
>
> {
>
> MonthlyROC = ROC( C, 21 );
>
>
> MonthlySum = 0;
>
>
> for( i = 0; i < howmanyMonths; i++ )
>
> {
>
> MonthlySum = MonthlySum + Ref( MonthlyROC, -21 * i );
>
> }
>
>
> return MonthlySum;
>
> }
>
> Filter=1;
>
> AddColumn(GetSumOfMonthlyROC(C, Months ),WriteVal(Months,1)
+"_Months");
>
>
>
> Anthony
>
> ----- Original Message -----
> From: "lamplowman" <lamplowman@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Tuesday, August 31, 2004 6:33 AM
> Subject: [amibroker] Draw a line in AFL
>
>
> >
> > I would like to draw a line in AFL from the close say six months
ago
> > to close today and also calculate the % gain over that period.
> >
> > I've looked at LineArray but don't seem to be able to work it out.
> >
> > Has anyone already done this?
> >
> > Thanks
> > Peter
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