[R] Hat values for generalized additive models

[Simon Wood]

> Is there a simple way to get the hat values out of a GAM object? 
>
- No, but there ought to be and I'll get on to it.
 
> Looking through the code, I couldn't see anywhere where the hat matrix is
> constructed. I tried the appended patch (against mgcv_0.8-1.tar.gz). This
> returns sensible hat values for normal errors, however the hat values using
> Poisson data don't look as good:
- Your patch looks to be doing the right thing to me, but I've not tried
running it yet. I'll try it out some time today.

Simon
  ______________________________________________________________________
> Simon Wood  snw at st-and.ac.uk  http://www.ruwpa.st-and.ac.uk/simon.html
> The Mathematical Institute, North Haugh, St. Andrews, Fife KY16 9SS UK
> Direct telephone: (0)1334 463799          Indirect fax: (0)1334 463748 


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