model.matrix crashes (PR#189)

[thomas@biostat.washington.edu]

On Tue, 11 May 1999 jlindsey@alpha.luc.ac.be wrote:

> With 0.64.1 on Intel RH5.2,
> 
> abc <- list()
> abc$abc$abc <- matrix(1:20)
> mt <- terms(~(abc$abc$abc[,1]==64)|(abc$abc$abc[,1]==65)|(abc$abc$abc[,1]==75)
> 	|(abc$abc$abc[,1]==84)|(abc$abc$abc[,1]==85))
> model.matrix(mt,model.frame(mt))
> 
> crashes. With ab$ab$ab, it does not. Apparently, the bug I reported
> for 0.64.0 has just been pushed back one step. Jim

I can't reproduce this on Solaris.

	-thomas


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