Re: [Rd] c.factor

From: Matthew Dowle <>
Date: Wed 15 Nov 2006 - 15:30:16 GMT

> Just for clarification, my interest was only to provide an
> alternative that provided for a more generic approach, at
> least in a narrow application, not that I was advocating it's
> need.

Understood, apologies for falsely implying your advocation.

> I would agree with Prof. Ripley's comments, that one needs to
> be quite careful in manipulating factors in this fashion, not
> the least of which would be ordered factors, which have not
> been considered here and could/would introduce their own
> idiosyncrasies in this context.

I agree with that of course.

> If something like this gets implemented (ie. concat()) one
> would need to fully understand the behavioral subtleties and
> the nature of the results, lest naive users find themselves
> in the potential presence of cascading errors.

Agree with that too. mailing list Received on Thu Nov 16 11:44:02 2006

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