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Jayson,
I would do this
z=10;
Cond=C>Ref(C,-1);num=Cum(Cond);
upz=LastValue(num)-num<=z-1;
Plot(C,"",5*Cond+4*NOT(Cond),64);
PlotShapes(shapeUpTriangle*upz*Cond,colorBrightGreen);
upV=Cum(upz*Cond*V)/10^6;
Cond1=NOT(Cond);num1=Cum(Cond1);
dnz=LastValue(num1)-num1<=z-1;
PlotShapes(shapeDownTriangle*dnz*Cond1,colorRed);
start=LastValue(num)-num+LastValue(num1)-num1==38;
dnV=Cum(dnz*Cond1*V)/10^6;
Title="upV="+WriteVal(upV)+", dnV="+WriteVal(dnV);
to see some details.
Dimitris Tsokakis
> > -----Original Message-----
> > From: Jayson [mailto:jcasavant@x...]
> > Sent: Thursday, 27 November 2003 3:18 AM
> > To: 1ami
> > Subject: [amibroker] sum only positive days
> >
> > I cannot seem to get my mind around what should be a fairly
simple thing
> > to code. Perhaps someone could nudge me in the right direction.
> >
> > I want to sum the volume of the last 20 up days and compare it to
the last
> > 20 down days. This is not to be confused with summing the up days
of the
> > last 20 bars, Simple code such as plot( c>ref(c,-1)"",4,2);
will plot
> > just the up days and x=iif(c>ref(c,-1),v,0) can calculate the
volume but
> > how do I sum the last 20 bars where x>0 as opposed to summing the
last 20
> > bars of X ?
> >
> > TIA
> >
> > Regards,
> > Jayson
> >
>
>
>
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