Dear list,
factor function was tried but failed. Pls kindly help and thank you. E. code rm(list=ls()) library(faraway) data (pima) pima$test < - factor (pima$test) [1] NA NA NA NA NA NA [[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.