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| From | Nick Cox <njcoxstata@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Creating a new variable conditional on the values for 2 other variables |
| Date | Tue, 10 May 2011 08:36:28 +0100 |
Note that this can be written as one line generate C = cond(missing(B), A, B) Nick > On Tue, May 10, 2011 at 2:08 AM, Hitesh Chandwani >> Thank you, Christian! This works! Christian Holz >>> generate C=A >>> replace C=B if !missing(B) Hitesh Chandwani >>>> I have 2 variables, A and B. I have values of A for all observations and >>>> values of B for some. A and B are both cost variables such that >>>> (B=A+extra >>>> cost). I need to generate a new variable C, such that C=B (for >>>> observations >>>> having a value for B), otherwise C=A * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/