Hi,
The reason I didn't send this to r-help is I am not interested in just
evaluating the variance function
for a particular set of data. That is not a big deal,
for your example,
pp<-predict(fm1,list(weight=c(15,16)))
vf<-pp^2*(coef(fm1$modelStruct$varFunc))
which is not the point. The point is t
Dear R Developers,
In the book "S programming", page 138-9, it is said that "(...) it is only
possible to use call_S to call S functions from within C functions called
from S". However, in "S programming" page 148-9 it is stated: "It can be
much easier to debug the code while called from a C or F
