Hi Quick glance to strsplit help page
strReverse <- function(x) sapply(lapply(strsplit(x, NULL), rev), paste, collapse="") Regards Petr [email protected] napsal dne 14.07.2010 12:36:12: > On Wed, 2010-07-14 at 12:13 +0200, Trafim Vanishek wrote: > > Dear all, > > > > Are there any functions in R to reverse the order of the string. > > smth like reverse("abc") to get "cba"? > > > paste(rev(strsplit("abc", split = "")[[1]]), collapse = "") > [1] "cba" > > If your real data is a vector of strings to reverse then > > strings <- c("abc","abc","abc") > sapply(strsplit(strings, split = ""), > function(str) {paste(rev(str), collapse = "")}) > > is one way to do this. > > HTH > > G > > -- > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% > Dr. Gavin Simpson [t] +44 (0)20 7679 0522 > ECRC, UCL Geography, [f] +44 (0)20 7679 0565 > Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk > Gower Street, London [w] http://www.ucl.ac.uk/~ucfagls/ > UK. WC1E 6BT. [w] http://www.freshwaters.org.uk > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% > > ______________________________________________ > [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. ______________________________________________ [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.
