Hi Roger, You're mixing up storage and display:
p <- "1087.003489" p <- as.numeric(p) > p [1] 1087.003 # the default value for digits = 7, which can be changed with option() > print(p, digits=4) [1] 1087 > print(p, digits=10) [1] 1087.003489 But note also: > print(p, digits=20) [1] 1087.003488999999945 (And see FAQ 7.31 if you don't understand why.) Sarah On Thu, Jul 2, 2015 at 9:54 AM, Bos, Roger <roger....@rothschild.com> wrote: > I have a string that contains a number and when I convert it to a number I > loose precision and I would like to know if there is a way to avoid that. > Here is my example: > > p <- "1087.003489" > as.numeric(p, digits=6) > > R gives me 1087.003: > >> p <- "1087.003489" >> as.numeric(p, digits=6) > [1] 1087.003 > > I would be nice if I could keep all the decimal places after the conversion. > > Thanks, > > Roger > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
