Thanks for the quick reply.

I found that page and do have the survival package installed.

My problem is that I don't understand a few things:
     1) What do I input for the "formula" field?  (In RapidMiner, the 
functions don't have this input.)
     2) How do I indicate which field is the "group ID" for the subset 
grouping?
     3) How do I indicate which field is the label?
     4) How do I indicate which fields in my dataset are for training?

Thanks!!!



On 7/16/09 12:54 PM, (Ted Harding) wrote:
> On 16-Jul-09 19:40:20, Noah Silverman wrote:
>    
>> Hello,
>> I'm brand new to using R.  (I've been using Rapid Miner, but would
>> like to move over to R since it gives me much more functionality.)
>>
>> I'm trying to learn how to do a conditional logit model.
>>
>> My data has one dependent variable, 2 independent variables and a
>> "group" variable.
>>
>> example:
>>
>> class    v1    v2    group
>> "sick"    .3    .7    1
>> "well"    .2    .9    1
>> "sick"    .25   .4    1
>> "sick"    .32   .6    2
>> "well"    .21  .81    2
>> "sick"    .5    .3     2
>>
>> Can someone help me formulate the proper command for the clogit()
>> function?
>> Thanks!
>>      
>
> Have a look at:
>
> http://finzi.psych.upenn.edu/R/library/survival/html/clogit.html
>
> You would need to install the 'survival' package.
>
> To search for this sort of thing in future, go to "R Site Search" at:
>
>    http://finzi.psych.upenn.edu/nmz.html
>
> and search according to the available options. For your particular
> query, I unchecked "R-help 2008-" and "Task views", leaving only
> "Functions", and entered "clogit" into the search box. Up came
> various hits, amongst which the one suggested above.
>
> Welcome to R, and happy hunting in the future!
> Ted.
>
> --------------------------------------------------------------------
> E-Mail: (Ted Harding)<Ted.Harding@manchester.ac.uk>
> Fax-to-email: +44 (0)870 094 0861
> Date: 16-Jul-09                                       Time: 20:54:18
> ------------------------------ XFMail ------------------------------
>    

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