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thanks, it works. I removed Sell and SellPrice as parameters and
declared them as global variables inside the procedure and it works
perfect!
BuyPrice = Open;
SellSystem001_proc(Buy,BuyPrice,open,high,low,close,hit,lot,maxdur);
rgds, Ed
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> Arguments in AFL are always passed by value not by reference,
> therefore they are not modified outside function scope.
>
> However you may explicitely declare variables as global
> inside function and then they will be modified globally.
>
> procedure Test( param1 )
> {
> global BuyPrice;
>
> BuyPrice = param1;
> }
>
> BuyPrice = C;
>
> Test( Open );
>
> // now buyprice will have open price assigned
>
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "ed2000nl" <pablito@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Monday, October 06, 2003 1:23 PM
> Subject: [amibroker] procedures: passing parameters
>
>
> > hi,
> >
> > I hope this is not already explained elsewhere, couldn't find it
> > anyway.
> >
> > I wrote some selling rules which I like to place in a "Procedure"
> > rather than a "Function" because the return is both the "Sell"
array
> > and the "SellPrice" array.
> >
> > In an other language I worked with (IDL) I could pass variables
just
> > by setting them as a parameter and if changed inside the
procedure
> > they would come back to me changed as well.
> >
> > So in my case the procedure has the following parameters:
> >
> > BuyPrice = Open; SellPrice = BuyPrice; SellPrice = 0;Sell = Buy;
Sell
> > = 0;
> > SellSystem001_proc
> > (Buy,BuyPrice,open,high,low,close,hit,lot,maxdur,Sell,SellPrice);
> >
> > Inside the procedure Sell and SellPrice are changed. However I
tried
> > it and it seems that the procedure does not "give back" these
changed
> > variables.
> >
> > Am I right about this and how could I solve this?
> >
> > thanks + Rgds, Ed
> >
> >
> >
> > Send BUG REPORTS to bugs@xxxx
> > Send SUGGESTIONS to suggest@xxxx
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