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: sortpreserve option
From
David Kantor <[email protected]>
To
[email protected]
Subject
Re: st: sortpreserve option
Date
Wed, 14 Aug 2013 17:15:24 -0400
At 03:14 PM 8/14/2013, Sergiy Radyakin wrote:
What is the effect of inclusion of the -sortpreserve- option in the
declaration of a program, which might change the number of
observations? (add or remove)
My understanding is that it should have no effect on the number of
observations.
Its effect is to insure that when the program exits, the data are
left in the same sort order as before.
That may or may not be desirable, depending on your needs.
It may take a little extra run-time.
I have written one program where I made it an option -- whether to
run it as sortpreserve. There was a little trick to make that happen,
which I can explain if you want.
HTH
--David
*
* 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/