Hi, I believe you want
eval(parse(text="pi/2")) a word of warning exemplified in eval(parse(text="library(fortunes) ; fortune(106)")) HTH, baptiste On 19 October 2011 19:30, Erin Hodgess <erinm.hodg...@gmail.com> wrote: > Dear R People: > > Suppose I have the following: > > "pi/2" > > and I would like it to be 1.57..... > > Using as.numeric, here is my result: > >> as.numeric("pi/2") > [1] NA > Warning message: > NAs introduced by coercion >> > > Is there a way to produce the numeric result, please? > > Thanks, > Erin > > > -- > Erin Hodgess > Associate Professor > Department of Computer and Mathematical Sciences > University of Houston - Downtown > mailto: erinm.hodg...@gmail.com > > ______________________________________________ > 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.