On Fri, Sep 11, 2009 at 7:15 PM, carol white <wht_...@yahoo.com> wrote:
> It might be a primitive question but how it is possible to determine if a > variable is initialized in an environment? What about this? > "x" %in% ls() [1] FALSE > x = 41 > "x" %in% ls() [1] TRUE Best, Michael -- Michael Knudsen micknud...@gmail.com http://lifeofknudsen.blogspot.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.