[R] gam questions

[Prof Brian Ripley]

On Tue, 3 Jun 2003, Henric Nilsson wrote:

> At 10:07 2003-06-03 +0100, Prof Brian Ripley wrote:
> 
> > > 1. The prediction example on p. 38 in the mgcv manual.
> >That's not very helpful: pagination of manuals depends on the paper size,
> >for example.
> 
> It's the gam.predict example. Instead of pred<-predict.gam(b,newd) I tried 
> pred<-predict.gam(b).
> 
> >Do you have the latest version of mgcv (and of R, for that matter)?
> 
> I'm running R 1.7.0 under Windows 2000 with mgcv 0.8-8.
(Yes, that is current AFAIK.)

The example works.  If you alter it as you state, there is a warning
(only), and that is a bug in mgcv. object$dim == 0 makes no sense as it is 
> b$dim
[1] 1 1 1 1

Either all() or any() is needed, but Simon will have to tell you which.

-- 
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