After calling Foreign:
eg
x = Foreign(“~nulltest”, “O”);
Can you simply use:
x = iif(x == 0, Null, x);
This will substitute Null values for ‘0’s
From:
amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of treliff
Sent: Monday, 23 January 2006
11:32 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: How can
AddToComposite generate Null values?
Thanks Graham, but that doesn't work. When I use 0 (zero) then ATC
creates zero value as expected, but I need it to
create empty (Null)
value.
--- In amibroker@xxxxxxxxxxxxxxx, Graham
<kavemanperth@xxxx> wrote:
>
> use 0 instead of null
>
>
> --
> Cheers
> Graham
> AB-Write >< Professional AFL Writing
Service
> Yes, I write AFL code to your requirements
> http://e-wire.net.au/~eb_kavan/ab_write.htm
>
>
> On 1/23/06, treliff <treliff@xxxx>
wrote:
> > When I run a dummy-scan like
> >
> > AddToComposite( IIf( DayOfWeek() == 5,
Null,
1) , "~nulltest" , "X");
> >
> > this results in Friday's values zero
(instead of Null or
{empty} ).
> >
> > Point is I need my ATC to generate
values that will be recognized
by
> > Foreign function as "fixup
candidates".
> >
> > I have tried instead
> >
> > AddToComposite( IIf( DayOfWeek() == 5,
1/0,
1) , "~nulltest" , "X");
> >
> > and this generates Infiniti values:
> >
> > 1.#INF
> >
> > however it seems these are not
considered for Foreign fixup.
> >
> > Any advice will be gratefully received.
TIA.
> >
> > -treliff
> >
> >
> >
> >
> >
> >
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>
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