On Wed, Oct 31, 2012 at 4:31 PM, Hard Core <gi...@hotmail.it> wrote: > Thank you but with that formula i don't understand how R can select only the > one with blue eyes >
Assuming you're referring to my proposal of aggregate(height ~ eyes, DATA, mean) It's not blue eyes only: that will summarize height for each eye color by taking the mean. Then just select blue eyes and you're good to go. Finally, I note you're posting from Nabble. Please include context in your reply -- I don't believe Nabble does this automatically, so you'll need to manually include it. Most of the regular respondents on this list don't use Nabble -- it is a _mailing list_ after all -- so we don't get the forum view you do, only emails of the individual posts. Combine that with the high volume of posts, and it's quite difficult to trace a discussion if we all don't make sure to include context. I'm only following up because I have a hunch this involves my earlier reply, but it's really not clear. Cheers, Michael ______________________________________________ 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.
