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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

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

Date |
Mon, 16 Jan 2012 00:55:31 +0000 |

The events A==0 B==1 C==1 are as said not mutually exclusive. So, there seems no cause either for surprise or for complaint. If you look at egen group = group(A B C), label missing all the distinct cross-combinations will be given distinct values. . tab group will then show your complete set-up. If Stata is not doing what you want, you need to explain what you want instead. Nick On Mon, Jan 16, 2012 at 12:41 AM, daniel klein <klein.daniel.81@googlemail.com> wrote: > 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- Deborah L. Huang > 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/

**Follow-Ups**:**Re: st: Code to generate dummy variable from several categorical variables?***From:*Nick Cox <njcoxstata@gmail.com>

**References**:**Re: st: Code to generate dummy variable from several categorical variables?***From:*daniel klein <klein.daniel.81@googlemail.com>

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