[gov2001-l] Fixed effects in R

Strange that it takes so long in zelig. As an alternative, try the plm package. For example zz <- plm(Y~X1+X2+..., data=data, index=c("Z"), model = "within") From: gov2001-l-bounces at lists.fas.harvard.edu [mailto:gov2001-l-bounces at lists.fas.harvard.edu] On Behalf Of Aakanksha Pande Sent: Saturday, March 29, 2008 10:50 PM To: gov2001-l at lists.fas.harvard.edu Subject: [gov2001-l] Fixed effects in R Hi, I am trying to do a fixed effects model in R and keep getting various error messages. In stata my code is xtreg y x1 x2.......x20, fe(z) y is my outcome variable and x1-x20 explanatory variables, z is the level at which i want to calculate fixed effects (here the district level) I have tried this in zelig using model (ls.mixed) and in nlme but it takes hours to calculate and usually i get strange error messages. i may have the wrong syntax. any ideas on how to convert the command in STATA above into R? thanks! Aaka