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]
st: RE: return null Mata
From
Joe Canner <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: RE: return null Mata
Date
Tue, 1 Apr 2014 20:46:52 +0000
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/