Simon,
Many thanks as always for your help.
I see and appreciate the example that you cited, but I'm having a hard
time generalizing it to a multivariate case. A bit about my context --
my dataset is response ratios; the log of a treatment over a control.
One of my explanatory variables is t
hi Andrew.
gam does suppress the intercept, it's just that this doesn't force the
smooth through the intercept in the way that you would like. Basically
for the parameteric component of the model '-1' behaves exactly like it
does in 'lm' (it's using the same code). The smooths are 'added on' t
> Dear List,
>
> I've just tried to specify a GAM without an intercept -- I've got one
> of the (rare) cases where it is appropriate for E(y) -> 0 as X ->0.
> Naively running a GAM with the "-1" appended to the formula and the
> calling "predict.gam", I see that the model isn't behaving as exp
3 matches
Mail list logo