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You earlier said " on a laptop under Win XP, same AB 4.70 rc1 I seem to get
results for all entries on the same WL where desktop falters."
Any explanation other than operator error?
-----Original Message-----
From: dalengo [mailto:dalengo@xxxxxxxxx]
Sent: Thursday, March 10, 2005 11:24 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] (solved): AA processes only fraction of WL
Thanks TJ (and Graham)!
Problem solved: following your advice I checked the Yahoo DB and the
code.
Some of Yahoo DJ indices that I check produced some (meaningless)
Volume !=0 data for the last few session, that were absent before
(like ^RUT). Therefore, my simple filter used for tickers with and
without volume has cut them off, since they of course have C>30 as a
rule:
----------8<---------------------------------------------------------
if( LastValue(MA(V,50)) > 0)
Filter = LastValue(MA(V,50))>100000 AND LastValue(MA(C,22))<30;
else
Filter = 1;
----------8<---------------------------------------------------------
Commenting out the first three lines produces the desirable result.
That's another dash of salt wrt poor quality of Yahoo data, worden
is better, but far from ideal too -- this is very unfortunate.
Hope another pair of kids from Stanford can start a data vendor co.
soon.
cheers - alex
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> First please go to Tools->Database Purify to determine if you have
> data for this particular date.
>
> Second thing: verify if you really selected watch list and nothing
else
> in the filter. Multiple filter selections work as "AND" operator
(not OR),
> so if you select multiple filtering conditions only symbols that
> meet ALL CONDITIONS at THE SAME TIME are included in the scan.
> Check also Filter->EXCLUDE page and make sure it is empty
(press "CLEAR" button)
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "dalengo" <dalengo@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Thursday, March 10, 2005 2:16 AM
> Subject: [amibroker] problem: AA processes only fraction of WL
>
>
> >
> >
> > AB 4.70 RC1, Win XP
> >
> > I am running my old exploration on 100 ^NDX stocks in a WL
> > containing 100 entries. All entries are in the DB with a few
years
> > of EOD data. However, I am getting only results for 43 stocks
out of
> > 100.
> > Same for a WL with various indices - getting <50% entries
> > processed/displayed.
> >
> > Notes:
> > AA is done for n=1 last days or last quotations.
> > Padding or not to ^DJI does not change anything.
> > $100k total cap with min 1 share (or 0) - no changes.
> > Overall standard settings. AA produces n output with the
> > data for ROC for various timeframes, and other simple statistics
> > like that, nothing fancy.
> >
> > Problem seems intermittent: some WLs are processed for all
entries.
> > Also, on a laptop under Win XP, same AB 4.70 rc1 I seem to get
> > results for all entries on the same WL where desktop falters.
> >
> > This really puzzles me.
> > Would appreciate your suggestions on how to get around the
problem.
> > -alex
> >
> >
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