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I have to do a logistic regression with independent categorical variables with more than two possible values. Which is the best way to deal with such variables using Stata or spss? I need to have Odds ratios in the output. Thanks.

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  • $\begingroup$ I have removed your signature. There's no need to sign your posts as your name appears immediately underneath anyway. Please see this section of the faq $\endgroup$ – Glen_b Mar 9 '13 at 10:15
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For IVs? Dummy variables. But stats packages should be able to set those up for you automatically.

http://en.wikipedia.org/wiki/Dummy_variable_%28statistics%29

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