Mr. Buis and Mr. Williams,
Thank you very much for the suggestions. I think I need to go through
the manuals more carefully than I generally do. Thanks again.
Regards
Krishanu
On 2/10/08, Maarten buis <[email protected]> wrote:
> --- krishanu karmakar <[email protected]> wrote:
> > Indeed, I have used the sort command and the relevant variable is an
> > id variable for individuals. Incidentally that is "repeated" for some
> > observations as the same individual may have fallen ill in the
> > reference period more than once. I think I need to use the serial
> > number of illness as the secondary sort variable along with the id
> > variable.
>
> In this case it is probably useful to check whether id and serial
> number of illness uniquely identifies each observation. They probably
> should but when preparing data it useful to check that kind of things.
> In this case the command would be:
>
> isid id serial
>
> (assuming that serial number of illnes is called serial). Another
> useful command for checking if things are as they should be is
> -assert-, see -help assert-.
>
> Hope this helps,
> Maarten
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
>
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room Z434
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
>
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--
Read it: http://www.stata.com/support/faqs/res/statalist.html
Specially Question 3.
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