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

[László Sándor <sandorl@gmail.com>]

Thanks,
I think I am with Daniel that oldish ado code would hardly be
competitive, I did not even test.

Assert is fun, as always, if only I could assume that the values are
always natural numbers starting at 0.

Thanks!

On Sun, Aug 25, 2013 at 4:43 PM, daniel klein <klein.daniel.81@gmail.com> wrote:
> Guess user-written approaches (or ados in general) are probably slower
> than built-in commands like -tabulate-. I would go with -assert-
>
> cap as foo > 100 ,f
>
>
> Note that -capture- supresses output by default, so -quietly- is not needed.
>
> Best
> Daniel
>
> --
>
> Try -unique- or -distinct- from SSC.
>
> On Sun, Aug 25, 2013 at 11:18 AM, László Sándor <sandorl@gmail.com> 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.
>>[...]
>> Is there a fast approach I am not aware of?
>
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