Hi, Try: vec1 <- as.character(factor(1*(n%%3==0)+2*(n%%5==0)+3*(n%%15==0),labels=c("Other","heads","tails","headstails"))) vec1[vec1=="Other"] <- which(vec1=="Other") vec1[1:6] #[1] "1" "2" "heads" "4" "tails" "heads"
A.K. On Monday, October 14, 2013 12:57 PM, Kile Green <kile.gr...@newcastle.ac.uk> wrote: Hi, I am very new to 'R' ("discovered" it about 2 months ago) and have been trying to teach myself the language using online guides, however I am not a programmer or statistician and so progress is slow. As an exercise, I have been trying to generate the numbers 1 to 100 and replace multiples of 3 with the text "heads", multiples of 5 with the text "tails" and multiples of both 3 and 5 with the text "headstails". So far I have managed to write the functions individually with: > n=c(1:100) > a=replace(n,n%%3==0,"heads") > b=replace(n,n%%5==0,"tails") > c=replace(n,n%%15==0,"headstails") I would like to combine these functions into a single process to produce an output along the lines of: 1,2,"heads",4,"tails","heads",7,8,"heads","tails"... etc I tried the following, without success: > replace(n,c(n%%3==0,n%%5==0,n%%15==0),c("heads","tails,"headstails")) As an 'R' novice I don't really have an idea of how I should approach this problem and unfortunately I have had problems trying to apply the answers given to other replace() and c() questions to my example. I would be grateful if someone could point me in the right direction or provide a similar example of combining simple functions without just giving the answer away - i'd like to learn how to use 'R', rather than just be told the answer. Regards, Kile [[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.