Making a loop for lme() in r

Question

I am trying to use lme function from nlme package inside a for loop. I have tried (almost) everything now, but without any luck. Without the loop my lme function are working

Answer 1

Solution: My loop is working now with this simple code:

lipid <-as.data.frame(cer_data[,c(7:9)]) dim(lipid) for (i in 1:length(lipid)) { variable <- lipid[,i] lme_cer <- lme(variable ~ factor(Remission) + Time + Age + BMI + SEX, random = ~1 | Lacal.Patient.ID, method = "REML", data = cer_data) print(summary(lme_cer)$tTable) }

Thank you all for the amazing help!