Gabriele - How about this:
> data<-c("A","A","A","B","B","C","D") > data [1] "A" "A" "A" "B" "B" "C" "D" > table(data) data A B C D 3 2 1 1 Thanks, Lee ". . . people who focus only on 'what is' will create more of 'what is.' People who focus mostly on 'what could be' will begin to create 'what could be.'" ~ Laura Beth Jones Lee P. Adams | Fuel & Emissions Strategy | Luminant Energy | lee.ad...@luminant.com | 214.875.8737 Office | 214.701.0687 Mobile -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Zoppoli, Gabriele (NIH/NCI) [G] Sent: Thursday, April 22, 2010 12:37 PM To: r-help@r-project.org Subject: [R] simple question Hi how can I find, in a vector of characters, which is the most frequent one? Thanks Gabriele Zoppoli, MD Ph.D. Fellow, Experimental and Clinical Oncology and Hematology, University of Genova, Genova, Italy Guest Researcher, LMP, NCI, NIH, Bethesda MD Work: 301-451-8575 Mobile: 301-204-5642 Email: zoppo...@mail.nih.gov ______________________________________________ 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. Confidentiality Notice: This email message, including an...{{dropped:10}} ______________________________________________ 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.