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I need to clarify my question: The AFL script need to be run in EXPLORATION mode, not the scan mode in my previous post.
So I don't think I can use "Buy=DateNum()==1090403;"
If I use "Last = C;" then Last is an array instead of scalar. This would prevent me from using Last in IF-statements, which requires numeric or boolean type.
Any other suggestions?
--- In amibroker@xxxxxxxxxxxxxxx, Graham <kavemanperth@xxx> wrote:
>
> Lastvalue gives the last value in your database for that symbol
> Just Use Last = C;
>
> --
> Cheers
> Graham Kav
> AFL Writing Service
> http://www.aflwriting.com
>
>
>
> 2009/4/10 conrad_faber <cfaber@xxx>:
> > Range from/to date restrictions work fine on my side. What you could do is to set Range to all quotations and extract using Buy=DateNum()==1090403;
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "H L" <hulu800@> wrote:
> >>
> >> This may be a really simple question. I want to run a scan on a certain day (e.g., 3/4/2009) using that day's close data, so I set the Range in Automatic Analysis as "from 3/4/2009 to 3/4/2009", in the AFL script I used Last=LastValue(Close) to try to get the close price on 3/4/2009, but it actually returned today's close price.
> >>
> >> So my question is: how to extract the data on a specific date from Close or other array-type price data?
> >>
> >
> >
> >
> >
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