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2003 Apr 14
1
Problem with nlme or glmmPQL (MASS)
Hola! I am encountering the following problem, in a multilevel analysis, using glmmPQL from MASS. This occurs with bothj rw1062 and r-devel, respectively with nlme versions 3.1-38 and 3.1-39 (windows XP). > S817.mod1 <- glmmPQL( S817 ~ MIEMBROScat+S901+S902A+S923+URBRUR+REGION+ + S102+S103+S106A+S108+S110A+S109A+S202+S401+S557A+S557B+ + YHOGFcat, data=Hogares, random= ~1, family=binomial, + na.action=na.omit) iteration 1 Error in getGroups.data.frame(dataMix, groups) : Invalid formula for...