On Mon, 16 Mar 2009, David Winsemius wrote:
Use an offset with a non-intercept model?
Yes
dat$ones<-1
glm(y~0+x+offset(ones), data=dat, family=whatever)
I wonder if there could be problems depending on the choice of family.
Only in the sense that if the model fits badly it might run up against the edge
of the parameter space in some families, which is no different than the
potential problems with a zero intercept.
-thomas
-- David Winsemius
On Mar 16, 2009, at 9:29 PM, Peter Palenchar wrote:
I know how to make the intercept 0 in glm, but I actually want to force my
intercept to be 1. Is there a way I can do this?
Peter
and provide commented, minimal, self-contained, reproducible code. ....
(None provided)
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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Thomas Lumley Assoc. Professor, Biostatistics
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