On 19/11/2010 10:12 AM, Yihui Xie wrote:
Maybe this should go to R-devel as a wishlist:Can we change as.character() to format() in this line in src/library/utils/R/Sweave.R? val<- as.character(eval(parse(text=cmd), envir=.GlobalEnv)) i.e. val<- format(eval(parse(text=cmd), envir=.GlobalEnv)) I guess this would not affect Sweave users, unless they really want 12 digits in the output (e.g. the standard error is 0.123456789012). Since format() can respect getOption('digits'), it will be much easier to control the number of digits globally.
I don't like the current behaviour, but that change could break a lot of existing documents. Since you can easily wrap your Sexpr arguments in a call to whatever formatting function you want, why force all of those users to change their documents?
Duncan Murdoch
Regards, Yihui -- Yihui Xie<xieyi...@gmail.com> Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA On Fri, Nov 19, 2010 at 2:02 AM, Dieter Menne <dieter.me...@menne-biomed.de> wrote: > > > Yihui Xie-2 wrote: >> >> >> Currently Sweave does not format the (especially numeric) value in >> \Sexpr{}, and I often have to round() the numbers explicitly, >> otherwise I will get more than 10 digits, which is not necessary for >> me in most cases. Is there a way to specify the number of digits to be >> kept for values in \Sexpr{}? e.g. can we make \Sexpr{} respect >> getOption('digits')? >> >> > > Currently, Sweave does an eval on Sexpr, and that can be anything other than > a number (is mostly is, though). And you cannot define a new version of > Sexpr in latex, because Sexpr only looks like latex, but is processed before > texing. > > My solution is to always do the rounding and formating in the R chunk (e.g. > with latexSN of Hmisc) to unclutter the Sexpr. > > Dieter > > ______________________________________________ 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.
