[R] Error() model is singular - what does that mean

zetwal zetwal at gmail.com
Mon Jul 2 20:02:21 CEST 2012


On changing the parameters; using only Error(User), I don't get any warning
on singularity. However most tutorials I saw seemed to point to using
Error(User/(whatever i specified before))

Are there some rules which indicated when I should use only Error(User) and
Error(User/(...))

Thanks
Pascal

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