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Dimitri,
Thank you .
Anthony
----- Original Message -----
From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Sunday, December 14, 2003 4:05 AM
Subject: [amibroker] Re: Confirm Output
> Anthony,
> Here is what I know for the subject.
> The population of, say, WL12 is available through the lines
>
> //WatchList population
> No=12;pop=0;
> for( i = 0; ( StrExtract( CategoryGetSymbols( categoryWatchlist,
> No ), i ) ) != ""; i++ )
> {
> pop=pop+1;
> }
>
> Simply add +1 for any existing ticker.
> Use it in IB or AA , it is independent of ApplyTo or Range Settings.
> The equivalent form [since your i is zero based] is
>
> //WatchList population
> No=12;pop=0;
> for( i = 0; ( StrExtract( CategoryGetSymbols( categoryWatchlist,
> No ), i ) ) != ""; i++ )
> {
> pop=i+1;
> }
> For the whole set of stocks the following reference may be useful.
> //Population of WatchLists
> pop=0;Title="Population of WLs";
> for(k=0;k<64;k++)
> {
>
> for( i = 0; ( StrExtract( CategoryGetSymbols( categoryWatchlist, k ),
> i ) ) != ""; i++ )
> {
> pop=pop+1;
> }
> if(pop>0)
> {Title=Title+"\n"+"WL"+WriteVal(k,1.0)+":"+WriteVal(pop,1.0);
> pop=0;}
> }
> For easier reference the empty WLs are not included in the title.
> Another approach is to create a comma separated string T with all WL
> populations and then just ask for the specific WL.
>
> //The WL population string
> //create first the string T
> pop=0;T="";
> for(k=0;k<64;k++)
> {
>
> for( i = 0; ( StrExtract( CategoryGetSymbols( categoryWatchlist, k ),
> i ) ) != ""; i++ )
> {
> pop=pop+1;
> }
> {T=T+WriteVal(pop,1.0)+",";
> pop=0;}
> }
> //Apply now to WL20 by extracting the 20th element of this pop string
> No=20;
> WLpop=StrExtract(t,No);
> Title=WLpop;
>
> Try to keep the loops simple as possible and avoid useless if/else
> statements by initialising the parameters in the before the loop.
> Dimitris Tsokakis
> --- In amibroker@xxxxxxxxxxxxxxx, "Anthony Faragasso" <ajf1111@xxxx>
> wrote:
> > Could others confirm this :
> >
> > When I run the simple explore on my watchlist #0 which contains the
> ^NDX and
> > componets = 101
> >
> > Filter=1;
> >
> > addcolumn(c,"");
> >
> > I get the number of rows at the bottom of AA = 101
> >
> > BUT.....when I run the following function , it returns 102....This
> worked
> > and returned the proper count until recently....
> >
> > //Single watchlist output
> >
> > WatchlistNumber=0;//enter watchlist number
> >
> > function CountTickersInWatchList( Listnum )
> >
> > {
> >
> > // retrive comma-separated list of symbols in watch list
> >
> > list = GetCategorySymbols( categoryWatchlist, listnum );
> >
> > for( i = 0; ( sym = StrExtract( list, i ) ) != ""; i++ )
> >
> > {
> >
> > if( i == 0 ) i = 0;
> >
> > else i = i ;
> >
> > }
> >
> > return i;
> >
> > }
> >
> > Filter=1;
> >
> > AddColumn(CountTickersInWatchList( WatchlistNumber),"Watchlist
> > #"+WriteVal(watchlistnumber,1),1);
> >
> >
> >
> > Thanks in advance
> >
> > Anthony
> >
> >
> > ---
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>
>
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