On Fri, 19 May 2006, Mulholland, Tom wrote: > After replies off the list which indicate the code should work. I tried a > variety of approaches. > > Rebooting, Using the --vanilla option and then removing the whole lot and > resinstalling. It now works. > > I guess it's another of those windows things?
No, it works under Windows. What you have not shown us is x3: > x3 [1] "1159" "1129" "1124" "-5" "-0.44" "-1.52" My guess is that you have something invisible in x1, e.g. a nbspace not a space (although that does not fully explain the results). What does > charToRaw(x1) [1] 31 31 35 39 20 31 31 32 39 20 31 31 32 34 20 2d 35 20 2d 30 2e 34 34 20 2d [26] 31 2e 35 32 give for you? > > Thanks to those that helped. > >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] Behalf Of Mulholland, Tom >> Sent: Friday, 19 May 2006 11:48 AM >> To: R-Help (E-mail) >> Subject: [R] Converting character strings to numeric >> >> >> I assume that I have missed something fundamental and that it >> is there in front of me in "An Introduction to R", but I need >> someone to point me in the right direction. >> >>> x1 <- "1159 1129 1124 -5 -0.44 -1.52" >>> x2 <- c("1159","1129","1124","-5","-0.44","-1.52") >>> x3 <- unlist(strsplit(x1," ")) >>> >>> >>> str(x2) >> chr [1:6] "1159" "1129" "1124" "-5" "-0.44" "-1.52" >>> str(x3) >> chr [1:6] "1159" "1129" "1124" "-5" "-0.44" "-1.52" >>> >>> as.numeric(x2) >> [1] 1159.00 1129.00 1124.00 -5.00 -0.44 -1.52 >>> as.numeric(x3) >> [1] 1159 1129 1124 NA NA NA >> Warning message: >> NAs introduced by coercion >> >> What do I have to do to get x3 to be the same as x2. >> >> Tom -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html