Hi, You can also try: res2<-rowSums(x==word)
res1<-sapply(where,length) res1[]<- sapply(res1,as.numeric) identical(res1,res2) #[1] TRUE A.K. ----- Original Message ----- From: Rui Barradas <ruipbarra...@sapo.pt> To: Sudip Chatterjee <sudipanal...@gmail.com> Cc: r-help@r-project.org Sent: Friday, March 8, 2013 4:26 PM Subject: Re: [R] Word Frequency for each row Hello, I'm not sure I understand, but see if the following is an example of counting occurences of a word in each row. set.seed(1855) x <- matrix(sample(LETTERS[1:5], 400, replace = TRUE), ncol = 4) word <- "A" where <- apply(x, 1, function(.x) grep(word, .x)) sapply(where, length) # count them Hope this helps, Rui Barradas Em 08-03-2013 16:04, Sudip Chatterjee escreveu: > Hi All, > > I am wondering if there is any examples where you can count your > interested "word" in each row. For an example if you have data with *'ID*' > and '*write-up*' for 100 rows, how would I calculate the word frequency for > each row ? > > Thank you for all your time. > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > ______________________________________________ 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. ______________________________________________ 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.
