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John,
Add the number 1 to the OI field in each composite
for each security added into the composite. You will then
have a running count of the # of securities to use as a divisor.
Regards,
Tony
--- In amibroker@xxxxxxxxxxxxxxx, <trader@xxx> wrote:
>
> All,
>
> Currently, I'm using AddToComposite to create synthetic tickers for
Industry
> Groups and Sectors. The overall algorithm is to sum the OHLC values
for each
> security and then divide this number by the count of the number of
> securities in each industry group. Straightforward, but difficult
to do with
> AddToComposite because the count for each of the industry groups
won't be
> known until AFTER the completion of the compositing Scan.
>
> That means dividing the algorithm into two Scans: creation of the
Industry
> Group security counts and creation of each Industry Group
composite. At a
> minimum, this requires two scans and twice as many composite
symbols as
> there are Industry Groups!
>
> So my question becomes, is there a way to somehow persist counts
for each of
> the industry groups without using lots and lots of synthetic
symbols?
> Alternately, is there a way to organize these symbols in another
group
> (default is 253) or delete them programmatically? Creating
temporary symbols
> between scans for calculations would make the above solution more
tolerable
> since I could remove the counts when done with them.
>
> Thanks for the help!
>
> -- John
>
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