Re: st: how to distinguish observations with the same code

["natalie chan" <natalie.channew@googlemail.com>]

Hi Jo and Kit,

That's most helpful. I've sorted it out. Thanks so much for your help.

best,

Natalie

On 5/7/07, Johannes Geyer <JGeyer@diw.de> wrote:
> as far as I understood the problem, you did not create string variables.
> if it is just a cross-sectional data set,  you could generate a simple
> index as identifier:
> gen x = _n
>
> jo
> >sacrificial lamb
> >
> >Natalie wrote
> >
> >I have actually created a new variable country to distinguish the
> >firms before appending, I am wondering if it is possible to create a
> >new variable combining the information of "code" and "country", so
> >that the observations can be distinguished by one variable? Thanks
> >alot.
> >
> >This is a FAQ.
> >
> >gen idcode = country + string(code)
> >
> >If you want a fixed length code (assuming countrycode is of fixed
> >length, e.g. ISO) then use string(code,"%9.0f") or something like that.
>
>
> ___________________
> Johannes Geyer
> Deutsches Institut f�r Wirtschaftsforschung (DIW Berlin)
> German Institute for Economic Research
> Graduate Center
> Koenigin-Luise-Stra�e 5
> 14195 Berlin, Germany
> Tel: +49-30-89789-258
>
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