On Wednesday 03 October 2007 08:23:15 Chung-hong Chan wrote: CC > CC > Suppose I have a long list of age, gender and bmi from a data.frame CC > called msltdata. CC > CC > > age <- msltdata$age CC > > gender <- msltdata$data CC > > bmi <-msltdata$bmi CC > > age CC > [1] 5 10 14 CC > > gender CC > [1] 0 0 0 CC > Levels: 0 1 CC > > bmi CC > [1] 17.17693 16.40702 16.87695 CC > > mapply(bmisds,age,gender,bmi)
have you tried bmisds(msltdata$age,msltdata$data,msltdata$bmi) ? ______________________________________________ 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.