Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: RE: return null Mata
From
"Thomas, Anthony" <[email protected]>
To
[email protected]
Subject
Re: st: RE: return null Mata
Date
Tue, 1 Apr 2014 16:56:38 -0400
Hi Joe,
Thanks, that is what I was looking for (should have looked closer at
help...).
Anthony
On Tue, Apr 1, 2014 at 4:46 PM, Joe Canner <[email protected]> wrote:
> Anthony,
>
> According to the Mata help, " return [without any arguments] causes the function to stop execution and return to the caller, returning nothing."
>
> Is that what you wanted?
>
> Regards,
> Joe Canner
> Johns Hopkins University School of Medicine
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of Thomas, Anthony
> Sent: Tuesday, April 01, 2014 4:41 PM
> To: [email protected]
> Subject: st: return null Mata
>
> Hi All,
>
> I'm sure there is an obvious answer to this question, but I can't seem
> to figure it out. I have a Mata function that I want to return nothing
> when some condition fails to be met (the function is ordinarily
> supposed to return a string matrix). I was thinking something like:
>
> if(something) return(NULL);
>
> or if(something) return(0);
>
> would work, but I get errors indicating the return type is not as
> expected in either case. I'm guessing this is because NULL is really a
> pointer and 0 is just being interpreted in its normal sense. How can I
> get Mata to return nothing in one instance and a string matrix in
> others?
>
> Thanks,
>
> Anthony
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/