[R] Coding of categorical variables for logistic regression?

[Johannes Huesing]

Ravi Kulkarni <ravi.kulk at gmail.com> [Sun, Mar 28, 2010 at 07:15:52PM CEST]:
[...]
>   I am trying to do a logistic regression and have one predictor variable
> (x) that is ratio and two predictor variables (y and z) that are
> categorical. These have three levels each which I have called "High",
> "Medium" and "Low".

You don't plan to use the information that y and z are apparently ordinal?
-- 
Johannes Hüsing               There is something fascinating about science. 
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