Just a quick point which may be easy to correct. Whilst typing the wrong thing into R 2.2.1, I noticed the following error messages, which seem to have some stray quotation marks and commas in the list of available families. Perhaps they have been corrected in the latest version (sorry, I don't want to upgrade yet, but it should be easy to check)?
> glm(1 ~ 2, family=quasibinomial(link=foo)) Error in quasibinomial(link = foo) : ‘foo’ link not available for quasibinomial family, available links are "logit", ", ""probit" and "cloglog" > glm(1 ~ 2, family=binomial(link=foo)) Error in binomial(link = foo) : link "foo" not available for binomial family, available links are "logit", ""probit", "cloglog", "cauchit" and "log" I hope this is helpful, Yan ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html