Hi, I am having a small problem with my code that is preventing my source file from running. Can anyone identify my error and how to maybe resolve the issue? command when error occurs: modelprobability_genderNB <- naiveBayes(gender ~ ., data probability_genderNB) My error: Error in tapply(var, y, mean, na.rm = TRUE) : arguments must have same length My dataset: gender relationship Male 1 Male 1 Female 1 Female 2 Male 1 Male 1 Female 2 Female 1 Male 2 Male 1 Female 1 Male 2 Female 1 Male 1 Female 1 Male 1 Male 2 Female 2 Male 2 Male 1 Male 1 Female 1 Female 2 Hope to hear from someone soon. Regards, John. -- View this message in context: http://www.nabble.com/R-Error-tp16743328p16743328.html Sent from the R help mailing list archive at Nabble.com.