on 02/06/2009 02:32 PM Felipe Carrillo wrote: > Hi everyone: It is probably something simple but I can't find > anything related to this. Could someone show me how to format the sum > of x. the result is 10000 but I need comma formatted like this: > 10,000. Since I am going to be using this number to be added to > another calculation, I want to be able to remove the comma from the > 10,000 value. Thanks > > x <- c(2000,3000,5000) this is the sum of x: \Sexpr{sum(x)}
See ?format and/or ?prettyNum and take note of the 'big.mark' argument: x <- c(2000,3000,5000) > sum(x) [1] 10000 > format(x, big.mark = ",") [1] "2,000" "3,000" "5,000" > format(sum(x), big.mark = ",") [1] "10,000" Note that these will be character vectors, not numeric, so be sure to retain the original numeric value(s) for subsequent math ops. HTH, Marc Schwartz ______________________________________________ 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.