[R] Question about range of letters
Hello, I have a column with a bunch of letters. I would like to keep some of these letters (A,C,D,L) and turn the rest into 'X'. I have tried using ifelse with '|' in between the argument but it didn't work nor did 4 separate ifelse statements. Example, I currently have: Letters A B C D E I would like to have: Letters A X C D X Thank you [[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.
Re: [R] Question about range of letters
Nia Gupta nia_gupta at yahoo.com writes: Hello, I have a column with a bunch of letters. I would like to keep some of these letters (A,C,D,L) and turn the rest into 'X'. I have tried using ifelse with '|' in between the argument but it didn't work nor did 4 separate ifelse statements. Example, I currently have: Letters A B C D E I would like to have: Letters A X C D X Thank you %in% will be helpful Letters - LETTERS[1:5] targets - c(A,C,D,L) Letters[!Letters %in% targets] - X __ 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.
Re: [R] Question about range of letters
On 10/4/2014 8:21 AM, Nia Gupta wrote: Hello, I have a column with a bunch of letters. I would like to keep some of these letters (A,C,D,L) and turn the rest into 'X'. I have tried using ifelse with '|' in between the argument but it didn't work nor did 4 separate ifelse statements. Example, I currently have: LettersABCDE I would like to have: LettersAXCDX Thank you [[alternative HTML version deleted]] try: let = sample(LETTERS[1:5],100,replace=TRUE) let let1 = ifelse(let %in% c('A','C','D'),let,'X') let1 __ 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.