Re: st: Simultaneous occurance

[Richard Goldstein <richgold@ix.netcom.com>]

use egen newvar=rowtotal(var1 var2)

newvar will be 0 if both are 0 (or both missing)
newvar will be 2 if both are 1

Rich

Olga Lyashevskaya wrote:
> Dear all,
>
> There are two binary variables in my sample, where 1
> is presence and 0 is absence of the particular
> characteristic. I want to identify those cases where I
> get either both 0's or both 1's
>
> Any suggestions?
>
> Thank you in advance,
> Olga
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