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Re: st: the fastest way to check if unique values of a variable > 100


From   "Eric A. Booth" <[email protected]>
To   [email protected]
Subject   Re: st: the fastest way to check if unique values of a variable > 100
Date   Sun, 25 Aug 2013 13:01:28 -0500

<>
Try -unique- or -distinct- from SSC.

On Sun, Aug 25, 2013 at 11:18 AM, László Sándor <[email protected]> wrote:
> Hi,
> Currently I think it is worth a quiet -cap tab- to catch the error
> r(134) or r(r). But it still can be a wasteful operation, as tabbing
> does work for many thousands of observations. And of course it does
> more than simply count the unique values.
>
> However, -inspect- or -codebook- are even worse as they keep counting
> even if I mistakenly throw in a continuous variable, plus they also
> calculate many things extra.
>
> Is there a fast approach I am not aware of?
>
> Thanks,
>
> Laszlo
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