Re: *** SPAM ALERT *** Re: st: RE: Continuous vs discrete variables.

[Jean-Benoit Hardouin <jean-benoit.hardouin@orscentre.org>]

Oups, Stas is the faster ! :o)
Jean-Benoit

Jean-Benoit Hardouin a �crit :

> Salut Amadou,
> A solution is to use -inspect- and to use r(N_unique) which contains 
> the number of modalities (without "missing values").
> For example :
> unab varlist: *
> local binary
> local categorical
> local numerous
> foreach i of varlist `varlist' {
>   qui inspect `i'
>    if `r(N_unique)'==2 {
>        local binary `binary' `i'
>    }
>    else if `r(N_unique)'<5 {/*or to an other value*/
>        local categorical `categorical' `i'
>    }
>    else {
>       local numerous `numerous' `i'
>    }
> }
> di "`binary'"
> di "`categorical'"
> di "`numerous'"
>
> Best,
> Jean-Benoit
>
> adiallo5@worldbank.org a �crit :
>
>
> > Maarten wrote:
> >
> >
> >                                                                                 
> >                                                                                 
> >                                                                                 
> > > 
> > Amadou:                                                                       
> > > If your discrete variable is consists of zeros 
> > and                            > ones, than you usually don't have 
> > to. If one                                  > variable distinguishes 
> > between more than two                                  > groups, than 
> > you can use -xi- prefix.                                         
> >                                                                                 
> > ------------------------------------------------------------------------------- 
> >
> >
> > Dear Maarten,
> >
> > Thanks for answering. Actually, I am not in a regression or 
> > summarizing context.
> > I have a huge dataset and would like, among other things, to know which
> > variables
> > are dummies, which are categorical (more than two but countable 
> > modalities),
> > which
> > are discrete type (1,2,3,...) and which are continuous. I want to 
> > place each
> > group in
> > local macros for future use.
> > Cheers.
> > Amadou.
> >
> >
> > *
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> >
> >
> >  
> *
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