I need to find out from an object returned by R function glm with argument
x = TRUE
what the subsetting was. It appears that if gout is that object, then
as.integer(rownames(gout$x))
is a subset vector equivalent to the one actually used.
I do also have the call to glm (as a call object) so can determine the
actual subset argument, but this seems to be not so useful because I don't
know the length of the original variables before subsetting.
So now my questions. Is this idea above (using rownames) OK even though I
cannot find where (if anywhere) it is documented? Is there a better way?
One more guaranteed to be correct in the future?
--
Charles Geyer
Professor, School of Statistics
Resident Fellow, Minnesota Center for Philosophy of Science
University of Minnesota
char...@stat.umn.edu
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