[R] how to deal with singularities in lm()

[Thomas Lumley]

On Tue, 9 Apr 2002, Lukas Kubin wrote:

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> I got the report
>
> Coefficients: (1 not defined because of singularities)
>
> while trying to get my model's coefficients from lm()
> What shall I do to avoid it and get the one missing coefficient?

It means that one of your coefficients can be computed as a linear
combination of the others.  Do that.

	-thomas

Thomas Lumley			Asst. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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