bunny , lautloscrew.com wrote: > Hi there, > > is there a possibility to count the number of appearances of an > element in a vector ? > i mean of any given element.. deliver all elements which are exactly > xtimes in this vector ? > > thx in advance !!
> myvec <- c(0, rep(1:6, each = 2), 7, 7, 7) > table(myvec) myvec 0 1 2 3 4 5 6 7 1 2 2 2 2 2 2 3 # Extract elements appearing twice > myvec[myvec %in% names(which(table(myvec) == 2))] [1] 1 1 2 2 3 3 4 4 5 5 6 6 > ______________________________________________ > [email protected] 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. -- Chuck Cleland, Ph.D. NDRI, Inc. 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894 ______________________________________________ [email protected] 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.
