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2003 Dec 04
2
Comparing Negative Binomial Regression in Stata and R. Constants differ?
...amples of count data that might interest the students and found this project about dropout rates in Los Angeles High Schools. It is discussed in the UCLA stats help pages for the Stata users: http://www.ats.ucla.edu/stat/stata/library/count.htm and See: http://www.ats.ucla.edu/stat/stata/library/longutil.htm To replicate those results, I used R's excellent foreign package to bring the lahigh data in, then did poisReg1 <- glm(daysabs~gender+ mathnce+langnce,family=poisson(link=log), data=lahigh) library(MASS) negbinReg1 <- glm.nb(daysabs~gender+ mathnce+langnce,link=log, data=lahigh) T...