... or some of the predictors are (near) linear combinations of others.
This often occurs when some of the predictors are categorical/factors with
lots of levels.

Cheers,
Bert




On Thu, Sep 12, 2013 at 8:45 AM, S Ellison <S.Ellison@lgcgroup.com> wrote:

> > Error in solve.default(H, g[!fixed]) :
> >   system is computationally singular: reciprocal condition number =
> > 4.65795e-19
> >
> Maybe you have more predictors than data?
>
> S Ellison
>
>
>
>
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