[R] how can I look at .Internal(model.matrix(t, data))?

[Peter Ehlers]

I imagine it's in

  https://svn.r-project.org/R/trunk/src/main/model.c

  -Peter Ehlers

On 2010-03-05 12:43, Werner W. wrote:
> Hi,
>
> I would like to see how model.matrix expands factor column to a set of dummy columns. I think that is done int .Internal(model.matrix(t, data)) which is called from model.matrix.default. But I have not idea how I can look at this function. How can I get to such internal functions?
>
> Thanks so much!
>    Werner
>
>
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-- 
Peter Ehlers
University of Calgary