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Tomasz,
Do you really thing your code works ?
Did you really try it , in your amibroker, before posting it ?
Don't you really know how Foreign( sym, "C", False ) works ?
[it is your choice and you should know the very strange way False
works :
If a stock XXX is missing the last 5 days of the user defined base
index [in Symbol->Categories->] and the last available bar ic C=100,
then the [strange !!] result of Foreign( "XXX", "C", False ) will be
{empty}
100
{empty}
100
{empty}
Please open the IB, paste your code, put in your WL20 3 stocks and
cause 10 holes at the end of one stock and then see the ziggy
result : WL20 has 2 tickers, 3 tickers, 2 tickers, 3 tickers etc.
If I had not spent 3 years with this great software, I would ask the
very simple question :
"Sorry sir, how many tickers belong to WL20 in final analysis ???"
But, I have spent a lot of my time with your software.
It was my choice and I don't think I was wrong.
I am more than sure that you will see the problem, no matter if you
fix it or not, and you will give a more serious reply.
With all due respect
Dimitris
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> > The only safe way to count [and use it as a daily function] is
> > through AddToComposite() function.
> This is NOT entirely true.
> The code you are using counts simply the number of items in comma
separated
> list of tickers. There are 3 strings so the result is thee.
>
> BUT THERE IS NOTHING THAT PREVENTS US FROM COUNTING ON BAR BY BAR
BASIS
> and this does NOT really require AddToComposite, see the code below:
>
> //Count tickers in watchlist function
> //For Indicator Builder
> WatchlistNumber=Param("Watchlist",20,0,63,1) ;//enter watchlist
number
> function CountTickersInWatchList( Listnum )
> {
> // retrive comma-separated list of symbols in watch list
> list = GetCategorySymbols( categoryWatchlist, listnum );
> Counter=0; // INITIALIZE COUNTER
>
> for( i = 0; ( sym = StrExtract( list, i ) ) != ""; i++ )
> {
> // TO COUNT BAR BY BAR YOU HAVE TO USE ARRAYS NOT SCALAR AND
USE FOREIGN TO FIND OUT HOLES
> Counter=Counter + ( NOT IsNull( Foreign( sym, "C",
False ) ) );
> }
>
> return Counter;
> }
>
> Title="Watchlist # "+WriteVal(watchlistnumber,1)+" has "+
> CountTickersInWatchList( WatchlistNumber) + " Tickers";
> Plot(CountTickersInWatchList( WatchlistNumber) ,"",1,1);
> Plot(Foreign("~count","v"),"",4,2);
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Saturday, February 28, 2004 9:45 AM
> Subject: [amibroker] Re: empty scan of a watchlist (?)
>
>
> > Anthony,
> > One important detail !
> > The code counts the symbols of WLxx, it DOES NOT give the
population
> > of WLxx in daily basis.
> > If you have 3 tickers in WL20 and there are some missing data,
the
> > result will still be 3.
> > The only safe way to count [and use it as a daily function] is
> > through AddToComposite() function.
> > Try to delete some quotations in WL20 stocks, run the
> > AddToComposite(1,"~count","v");
> > Buy=0;
> > for WL20 and then plot the
> > //Count tickers in watchlist function
> > //For Indicator Builder
> > WatchlistNumber=Param("Watchlist",20,0,63,1) ;//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++ )
> > {
> > Count1=i;
> > }
> > return i;
> > }
> > Title="Watchlist # "+WriteVal(watchlistnumber,1)+" has "+
> > CountTickersInWatchList( WatchlistNumber) + " Tickers";
> > Plot(CountTickersInWatchList( WatchlistNumber) ,"",1,1);
> > Plot(Foreign("~count","v"),"",4,2);
> > and you will see.
> > [We have a recent discussion with Stephane on the same subject.]
> > The reason should be simple: If WL20 includes IBM, INTC and MSFT,
> > then there should be somewhere an inside syntax
> > WL20="IBM,INTC,MSFT", in other words WL20 should be nothing but a
> > comma separated string. This fact does not include any info about
> > missing [or excessive] bars.
> > Dimitris Tsokakis
> > --- In amibroker@xxxxxxxxxxxxxxx, "Anthony Faragasso"
<ajf1111@xxxx>
> > wrote:
> > > Dalengo,
> > >
> > > Put this into Indicator builder, you can use Parameter to
select
> > different
> > > watchlist....the total count will be in the title.
> > >
> > >
> > > //Count tickers in watchlist function
> > >
> > > //For Indicator Builder
> > >
> > > WatchlistNumber=Param("Watchlist",0,0,63,1) ;//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++ )
> > >
> > > {
> > >
> > > Count1=i;
> > >
> > > }
> > >
> > > return i;
> > >
> > > }
> > >
> > > Title="Watchlist # "+WriteVal(watchlistnumber,1)+" has "+
> > >
> > > CountTickersInWatchList( WatchlistNumber) + " Tickers";
> > >
> > >
> > >
> > > Anthony
> > >
> > > ----- Original Message -----
> > > From: "dalengo" <dalengo@xxxx>
> > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > Sent: Friday, February 27, 2004 12:29 PM
> > > Subject: [amibroker] empty scan of a watchlist (?)
> > >
> > >
> > > > Hi,
> > > > Can someone help with the scan of a watchlist function?
> > > > I am trying a trivial counting of entries in N100 watchlist
> > > > by scanning the AFL AB 4.51.1:
> > > >
> > > > AddToComposite(1,"~COUNT","V");
> > > > Buy=0;
> > > >
> > > > N100 is in List0, and all entries in List0 are valid (display
> > > > properly).
> > > > I use filter:list0 in AA to aim AA at list0 per User Guide,
> > > > run the Scan and get nothing.
> > > > Run for CURRENT stock, get ~COUNT=1, run for ALL STOCKS, get
> > > > (in US-Stocks) ~COUNT=6592 on 2/23/04, again for one stock,
get 1.
> > > > Run again on List0 using Filter: get nothing (old result
remains
> > > > unchanged).
> > > >
> > > > What's wrong?
> > > >
> > > > Many thanks for your suggestions,
> > > > -Dalengo
> > > >
> > > >
> > > >
> > > > Send BUG REPORTS to bugs@xxxx
> > > > Send SUGGESTIONS to suggest@xxxx
> > > > -----------------------------------------
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> > > > --------------------------------------------
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> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
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> >
> >
> >
> > Send BUG REPORTS to bugs@xxxx
> > Send SUGGESTIONS to suggest@xxxx
> > -----------------------------------------
> > Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
> > (Web page: http://groups.yahoo.com/group/amiquote/messages/)
> > --------------------------------------------
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> >
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> >
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
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