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Re: st: Mata void functions and pointers
From
[email protected] (Brendan Halpin)
To
[email protected]
Subject
Re: st: Mata void functions and pointers
Date
Thu, 17 May 2012 23:03:53 +0100
On Thu, May 17 2012, Matthew Baker wrote:
> Brendan (and others):
>
> I should have been more clear! I would certainly prefer to use a
> vector to collect the elements, but the objects I'm collecting are of
> unknown dimension which is not known in advance
OK, that makes sense.
> void example(A,B,Ab) Ab=J(A+round(3*runiform(1,1)),B,1)
> P=J(3,1,NULL)
> for (i=1;i<=3;i++) {
> example(i,i,Ab=.)
> Ab
> P[i]=&Ab
The trouble is you're re-using Ab. You want to use a different piece of
memory each time.
Can you get P[i] into the function call? e.g.
example(i,i,*P[i])
This is getting a little above my pay-grade, and making me think
uncomfortably of malloc and other ugly things!
Alternatively, does Mata have lisp-style lists?
Regards,
Brendan
--
Brendan Halpin, Department of Sociology, University of Limerick, Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F1-009 x 3147
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http://teaching.sociology.ul.ie/bhalpin/wordpress twitter:@ULSociology
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