listA = categoryfind("A", categorywatchlist);
listB...
listC...
buy = h > ref(hhv(h, 180), -1) and !(inwatchlist(listA) or
inwatchlist(listB) or inwatchlist(listC))
you will make it run much faster if you put the listno yourself rather than
using CategoryFind. if you think about it
every cateorgyFind statement is run as many times as there are symbols in
your universe.
The fastest way is to do an exploration of all the stocks that are not in A,
B, C etc and save all results in another watchlist
then all you have to do is buy = h > ref(hhv(h, 180), -1);
_____
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf
Of murthysuresh
Sent: Saturday, 2 June 2007 12:36 PM
To: [email protected]
Subject: [amibroker] Re: need help in optimizing
The scan does this.
buy stocks making 9 month high but it is not in watchlist A or
Watchlist B or watchlist C
When i breakdown the scan parameters
"buy stocks making 9 month high " This piece of the scan takes couple
of minutes
not in watchlist A or Watchlist B or watchlist C adds 20 minutes to
the scan.
How do i optimise it.
--- In [EMAIL PROTECTED] <mailto:amibroker%40yahoogroups.com> ps.com,
"dingo" <[EMAIL PROTECTED]> wrote:
>
> Describe what you're trying to do in words.
>
> d
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED] <mailto:amibroker%40yahoogroups.com> ps.com
> > [mailto:[EMAIL PROTECTED] <mailto:amibroker%40yahoogroups.com> ps.com]
On Behalf Of murthysuresh
> > Sent: Friday, June 01, 2007 8:44 PM
> > To: [EMAIL PROTECTED] <mailto:amibroker%40yahoogroups.com> ps.com
> > Subject: [amibroker] need help in optimizing
> >
> > The following script takes 20 minutes to execute when i set the
scan
> > to last 1 day only. When i broke down the factors into multiple
> > pieces,
> > i found that the following line adds 15 minutes to the scan
times.
> > how can i optimize it so it runs faster
> >
> > ChkWatchlist=InWatchList(CategoryFind("Watchlist A",
> > categoryWatchlist )) OR InWatchList(CategoryFind("BuyMA",
> > categoryWatchlist )) OR InWatchList(CategoryFind("Congestion",
> > categoryWatchlist )) OR InWatchList(CategoryFind
> > ("Breakout_continueation", categoryWatchlist ));
> >
> >
> >
> >
> > -- The actual script that i ran.
> >
> > yestprice=Ref(High,-1);
> > ChkWatchlist=InWatchList(CategoryFind("Watchlist A",
> > categoryWatchlist )) OR InWatchList(CategoryFind("BuyMA",
> > categoryWatchlist )) OR InWatchList(CategoryFind("Congestion",
> > categoryWatchlist )) OR InWatchList(CategoryFind
> > ("Breakout_continueation", categoryWatchlist ));
> > Buy=(High>HHV(yestprice,180) AND Close<25) AND MA(V,20)>200000
AND
> > (ChkWatchlist==0);
> > //Buy=High>HHV(yestprice,180) ;
> > Filter=Buy;
> >
> > Thanks seede
> >
> >
> >
> >
> > Please note that this group is for discussion between users only.
> >
> > To get support from AmiBroker please send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroke <http://www.amibroker.com/devlog/> r.com/devlog/
> >
> > For other support material please check also:
> > http://www.amibroke <http://www.amibroker.com/support.html>
r.com/support.html
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
