[R] "disregarded projections" warning when fitting lm model

[Prof Brian Ripley]

On Tue, 25 Jan 2005, Piet van Remortel wrote:

> I'm fitting a linear model (using lm) to some 2500 data points.  The
> model consists of 4 single terms and two combined terms.  I get the
> following warning message:
>
> "Extra arguments projections are just disregarded. in: lm.fit(x, y,
> offset = offset, singular.ok = singular.ok, ...) "
>
> Can anybody clarify this ?  I don't seem to find any pointer to what
> this might mean.  Too many/little data points ?  too many terms in the
> model ?

It means you called lm.fit with an argument `projections' it does not 
support.  Presumably you called lm with such an argument, even though none 
is documented.  Please read the help page for lm for more details.

-- 
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 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595