search for: hallmann

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2008 Mar 17
2
stepAIC and polynomial terms
...te * age + I(age^2), family = logexposure(ExposureDays = DATA$int), data = DATA) and the final one: Call: glm(formula = S ~ FR + Date + I(age^2), family = logexposure(ExposureDays = DATA$int), data = DATA) Thanks very much in advance for your thoughts and suggestions, Caspar Caspar Hallmann MSc Student WUR The Netherlands [[alternative HTML version deleted]]
2007 Oct 19
1
X matrix deemed to be singular in counting process coxph
...warning. I seem to have been stuck on this one. Does anyone known or have any suggestions why t can't be estimated? I haven't been able to find any help on the RSiteSearch. Many thanks in advance. Caspar PS: I could send a some of this dataset if anyone interested for a tryout Caspar Hallmann MSc Student WUR The Netherlands