on 12/08/2004 09:24, Mark Clatworthy at [email protected] wrote:
> I would like to generate a newvar which is equal to
> variable y +1 if variable x
> is less than 5, but equal to variable y if variable x is greater than 5.
. gen newvar = y + (x < 5) if ~missing(x)
The logical statement (x < 5) evaluates to true (1) or false (0). Since it
is false when x is missing, the -if- statement is needed to keep newvar from
taking on values when it shouldn't.
Ronan M Conroy ([email protected])
Lecturer in Biostatistics
Royal College of Surgeons
Dublin 2, Ireland
+353 1 402 2431 (fax 2764)
--------------------
Just say no to drug reps
http://www.nofreelunch.org/
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/