Hi, Ning, Try: eval(parse(text = expr))
HTH, --sundar On Sat, May 2, 2009 at 5:39 AM, Ning Ma <pnin...@gmail.com> wrote: > Hi, > > I am new to R. Can anyone tell me how to evaluate an expression stored > in a string? > such as: >> expr <- "3*5" > I want to get the result 15. > > Thanks in advance. > > ______________________________________________ > 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.
