Please read the Posting Guide. There is a no HTML policy and a no homework policy. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity.
On July 23, 2014 11:40:09 PM PDT, super <desolato...@163.com> wrote: >The question is as below: >Exercises >1.The following two calls look the same, but are actually different: > (a <- call("mean", 1:10)) >#> mean(1:10) >(b <- call("mean", quote(1:10))) >#> mean(1:10) >identical(a, b) >#> [1] FALSE >What��s the difference? Which one should you prefer? >So, how i can figure out this question? > > > [[alternative HTML version deleted]] > > > >------------------------------------------------------------------------ > >______________________________________________ >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.