[R] Coding of categorical variables for logistic regression?

[David Winsemius]

Just because a covariate is ordered does not ensure that the  
relationship will be monotonic.

-- 
David.

On Mar 28, 2010, at 11:09 PM, C.H. wrote:

> ?polr of the MASS package.
>
>
> On Mon, Mar 29, 2010 at 10:39 AM, Ravi Kulkarni  
> <ravi.kulk at gmail.com> wrote:
>>
>> How do I use the "extra" information that two of my predictors are  
>> ordinal?
>> (I did not know I could do that.)
>>
>> Thanks,
>>  Ravi
>> --
>> View this message in context: http://n4.nabble.com/Coding-of-categorical-variables-for-logistic-regression-tp1694250p1694644.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> -- 
> CH Chan
> Research Assistant - KWH
> http://www.macgrass.com
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

David Winsemius, MD
West Hartford, CT