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2008 Aug 19
0
gam.check in gam (mgcv)
...ief description of my data, I have
claims: a vector of values, which include NA's and one large negative value - otherwise all positive (55 values in total that are not NA).
origin: a factor with 10 levels
j : taking the values 1, 2, ...., 10
I have fitted a gam, with:
> library(mgcv)
> modelg <- gam(claims ~ origin + s(log(col)), family = quasipoisson(),
+ subset=!is.na(claims))
(I have obtained a work-around of the quasipoisson family to deal with the negative value.)
After this I tried the following:
> gam.check(modelg)
This gives a plot in the usual way (that looks fi...