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Re: st: Code to generate dummy variable from several categorical variables?


From   urbain thierry YOGO <[email protected]>
To   [email protected]
Subject   Re: st: Code to generate dummy variable from several categorical variables?
Date   Mon, 16 Jan 2012 16:36:59 +0100

Try tabulate variable, gen(newvariable)
summarize variable*
where variable is the categorical variable and new variable, the new
dummy. You may have as dummy variable as the number of modalities.

2012/1/16, daniel klein <[email protected]>:
> Deborah,
>
> I am not really getting what you are trying to do here (and whether it
> makes sense), since you are not giving any infromation on your
> variables, but would replacing the line
>
> replace abnlX=2 if C==1
>
> with
>
> replace abnlX=2 if C==1 & mi(abnlX)
>
> do what you want?
>
>
> As a side issue, note that this
>
> replace abnlX=2 if C==1 & (B==. | B==0 | B==1)
>
> can be written as
>
> replace abnlX=2 if C==1 & inlist(B, ., 0, 1)
>
> See -help inlist()- and -help functions-
>
> Best
> Daniel
>
> --
> Hello,
>
> I'm looking for code to generate a dummy variable from values of
> several categorical variables which are not mutually exclusive. I've
> tried to do this using the generate and replace commands but Stata is
> changing the number of subjects in each dummy category as follows:
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>


-- 
*Urbain Thierry YOGO
P.h.D candidate in Economics*
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


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