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Re: st: Creating a new variable conditional on the values for 2 other variables


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
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