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That sounds logical. I'll look into figuring out how to set the look back for a year or so and see if that stablizes it.
Thank you for the insight!
mike
--- In amibroker@xxxxxxxxxxxxxxx, Keith McCombs <kmccombs@xxx> wrote:
>
> Mike --
> This is just a guess. But, each bank probably has a different total
> number of bars. So the Cum() is going to be 'acCumulated' over a
> different period. Rather than using Cum() why not use the sum( ARRAY,
> periods ). And make sure the 'periods' does not exceed the minimum
> number of bars for all the stocks used in the group that you are analyzing.
> -- Keith
>
> On 3/19/2010 16:32, Mike wrote:
> >
> > I'm new to this add to composite function and I am using this code to
> > plot an AD line.
> > ...............................................
> > int_string = "Banking"; //MarketID(1)
> > Difference = ( Foreign("~adv_" +int_string, "C") - Foreign("~dec_"
> > +int_string, "C") )/ ( Foreign("~unc_" +int_string, "C")+ 1 );
> > DiffSqrt = IIf( Difference > 0, sqrt( Difference ), - sqrt( -
> > Difference ) );
> > BankADLine = Cum( DiffSqrt );
> > _TRACE("BankADLine "+ BankADLine );
> > ...............................................
> >
> > I scaned a watchlist of Banking stocks to get the
> > ~adv_Banking,~dec_Banking, and ~unc_Banking composites which are in
> > group 253.
> > Whenever I switch chart tabs at the top of the chart display and the
> > ticker changes I get a different trace value for the BankADLine.
> >
> > How are the composite symbols changing their scanned values. I've even
> > tried the setforeign("sym"); and RestorePriceArrays() ; to lock in the
> > symbol I think the code is working with but they are completely ignored.
> >
> > I'm trying to get the AD line values for multiple watchlists/sectors
> > in one indicator. So I want to repeat "this" code multiple times.
> >
> > Please help, my head is starting to hurt...this desk is really hard!
> >
> > Thank you for any assistance!
> >
> > mike
> >
> >
>
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