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

[Werner W.]

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


____________________________________________
einen herausragenden Schutz gegen Massenmails. 
http://mail.yahoo.com