How to comment in R

A somewhat twisted approach that has not been mentioned is to consider  
everything a comment unless it is enclosed in special tags, as done in  
the brew package,

for example,
 brew(textConnection(
"You won't see this R output, but it will run. <% foo <- 'bar' %>
 Now foo is <%=foo%> and today is <%=format(Sys.time(),'%B %d, %Y') 
%>."
 ) )
gives,
You won't see this R output, but it will run.
Now foo is bar and today is February 11, 2009.
I'd love to see an editor with a "brew" mode that acts as a notebook:  
you type in your text in whatever language without worrying about the  
syntax (R syntax, i mean!), and when you want to do a calculation you  
just enclose it in such tags that behave like an inverted block comment.

Just a thought,

baptiste

I think you need to revisit the suggestion of how to use Tinn-R
to ensure you are doing it properly.  If its R code then if(FALSE)
has already been mentioned as an alternative and another possibility
is just enclose it in double quotes (or if there are double quotes in
the passage then in single quotes):

f <- function(x) {
  " here
  are some comments of
  mine"
  x+1
}

On Wed, Feb 11, 2009 at 3:32 AM,  <Mihai.Mirauta at bafin.de> wrote:
Hi everybody,

I use for the moment "#" at the begining of each line for comments.

Is there any possibility to comment more than one line, like  
something which shows the beggingng and the end of the comment? Or  
is there a possibility to comment only a part of a line?

Thanks,

Mihai

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______________________________________________
R-help at r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
_____________________________

Baptiste Augui?

School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag

How to comment in R

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