I think a question about the S family() functions is best determined by
reading the S(-PLUS) documentation. The weights component computes the
working weights for the IWLS, unsurprisingly (and as stated by
?family.object). R has mu.eta to do that, the crucial line in R's glm.fit
being
w
Hi all
I am converting an S-Plus function into R. The S-Plus code
uses some of the glm families, and family objects.
The family objects in S-Plus and R have many different
features, for example:
In R:
names(Gamma())
[1] family link linkfunlinkinvvariance
[6]
You want to aim to write a family for R, not find the equivalents of S
constructs -- they are different and so exact equivalents do not exist.
In particular, an R family has several components which an S family does
not.
There are lots of example families for you to follow (e.g. see ?family
Dear all,
I am in the process of migrating an S programme library to R, and it
involves the family entity.
I have checked ?family but it does not give much detail of its components.
I will be very grateful if anyone can point towards sources/ways to look up
on this areas
with an aim to find
