On 01/26/2012 07:23 PM, citadel wrote:
I am new to R, and I am trying to cut a continuous variable BMI into different categories and can't figure out how to use it. I would like to cut it into four groups:<20, 20-25, 25-30 and>= 30. I am having difficulty figuring the code for<20 and>=30? Please help. Thank you.
Hi citadel, Assuming that you only have positive numbers and they are all less than 100: BMIcut<-cut(BMI,breaks=c(0,20,25,30,100), include.lowest=TRUE,right=FALSE) This will give you >=0-20, >=20-<25, >=20-<30, >=30-<100 Jim ______________________________________________ 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.
