[R] option singular.ok = TRUE in fuction lm

[Prof Brian D Ripley]

On Mon, 4 Feb 2002, Sven Garbade wrote:

> Hi all,
>
> what does the option singular.ok in funtion lm() means? I took a look in
> the help page of lm() and found:
>
> singular.ok      logical, defaulting to TRUE. FALSE is not yet
> implemented.

Right. In S, it defaults to F, and means that lm refuses to fit a
reduced-rank model.  R always will (and have NA components in the
coefficients).

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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