Suppose I fit the following model:
>library(gam)
....
>fit <- gam(y~x1+x2+s(x3),family=binomial)
and then I use
> fitf$coef
x1 x2 s(x3)
4.1947460 2.7967200 0.0788252
are the coefficients for x1 and x2 the estimated
coefficients? what is the meaning of s(x3)? since this
is a non-parametric component, it may not belong here
as a coefficient, am I right?