Re: [R] Lapack error in Design:::ols

From: Gad Abraham <gabraham_at_csse.unimelb.edu.au>
Date: Sun, 06 Apr 2008 15:17:45 +1000

Prof Brian Ripley wrote:
> This is not an LAPACK error, but an R function chol2inv complaining that
> it is being misused.
>
> The problem is that you have a vastly overparametrized model (using
> recover())
>
> Browse[1]> dim(X)
> [1] 20 143
>
> and ols() does not detect that, whereas lm() would. I'd suggest ols()
> is to blame here.

Thanks for clarifying that.

Gad

-- 
Gad Abraham
Dept. CSSE and NICTA
The University of Melbourne
Parkville 3010, Victoria, Australia
email: gabraham_at_csse.unimelb.edu.au
web: http://www.csse.unimelb.edu.au/~gabraham

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