Dear R users, could you please help me figure out why I am getting an error?
Initially my data looks like this: > attributes(compl)$names [1] "UserID" "compl_bin" "Sex.x" "PHQ_base" "PHQ_Surv1" "PHQ_Surv2" "PHQ_Surv3" [8] "PHQ_Surv4" "EFE" "Neuro" "Intervention.x" "depr0" "error1_1.x" "error1_2.x" [15] "error1_3.x" "error1_4.x" "stress0" "stress1" "stress2" "stress3" "stress4" [22] "hours1" "hours2" "hours3" "hours4" "subject" First I reshape my data to prepare for geeglm: compl$subject <- factor(rownames(compl)) nobs <- nrow(compl) compl_long <- reshape(compl, idvar = "subject",varying = list(c( "PHQ_Surv1" , "PHQ_Surv2" , "PHQ_Surv3" , "PHQ_Surv4" ), c("error1_1.x", "error1_2.x", "error1_3.x", "error1_4.x"), c("stress1", "stress2", "stress3", "stress4"), c("hours1", "hours2", "hours3", "hours4")), v.names = c("PHQ", "error", "stress", "hours"),times = c("1", "2", "3", "4"), direction = "long") [1] "UserID" "compl_bin" "Sex.x" "PHQ_base" "EFE" "Neuro" "Intervention.x" [8] "depr0" "stress0" "subject" "time" "PHQ" "error" "stress" [15] "hours" Then I use geeglm function: geeSand=(geeglm(PHQ~as.factor(compl_bin)+Neuro+PHQ_base+as.factor(depr0)+EFE+as.factor(Sex.x)+as.factor(error)+stress+hours,family = poisson,data=compl_long,id=subject, corst="exchangeable")) I am getting an error: "Error in geese.fit(xx, yy, id, offset, soffset, w, waves = waves, zsca, : nrow(zsca) and length(y) not match" If I remove variables as.factor(error) and hours, geeglm does not complain, and I am getting the output. The function does not work with error and hours variables. I check the length of all the variables, they are equal. Could you please help me figure out what is wrong? Many thanks! [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.