There is a difference between parsed functions and .R files. What you see when
you type the name of a function alone on the R command line is a text
representation of the parsed function that is ready to run in RAM. That has
none of the comments or whitespace from the function as you wrote it. The
parsed version is what the "edit" function allows you to modify. This is why we
use .R files.
FWIW I never use the "edit" function. I use a separate window for editing the
code I want to keep, and either copy/paste the bits I want to execute (with or
without the use of macros to facilitate that) into the R command line, or use
the "source" function to pull in a set of functions all at once.
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Jeff Freedman <jfreed...@awstruepower.com> wrote:
>Since installing R 2.14.0 on my Mac (a Mac Pro running 10.6.8) an issue
>has arisen when using the vi editor in conjunction with the edit()
>command. More specifically, commented lines disappear from edited
>functions when using [functionname.R] <- edit().
>
>That is, if you have created a function called �test.func� as such:
>
>function ()
>{
># This is a test
>ex _ 4
> duh <- seq(1, 10)
> fuh <- seq(11, 20)
> plot(duh, fuh)
>}
>
>you will of course get an error message:
>
>Error in edit(name, file, title, editor) :
> unexpected input occurred on line 4
> use a command like
> x <- edit()
> to recover
>
>When using the �x <- edit� (or in this case, test.func <- edit()), the
>comment �This is a test� will disappear from the edited function.
>
>Does anyone have any insight into this problem?
>
>Thanks,
>Jeff Freedman
>
>_____________________________
>Jeff Freedman
>Lead Research Scientist
>AWS Truepower, LLC
>463 New Karner Road
>Albany, NY 12205
>phone: 518-213-0044 (x1049)
>fax: 518-640-6897
>
>
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>
>______________________________________________
>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.
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