... and non-missing.
On Tue, Mar 18, 2008 at 12:00 PM, Tom Trikalinos <[email protected]> wrote:
> this would be a NOT XOR operator (ignorant on whether Stata has one),
> but here their sum should be !=1
>
>
>
>
> On Tue, Mar 18, 2008 at 11:55 AM, Olga Lyashevskaya
> <[email protected]> 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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