On 07/22/09 07:30, Mark Knecht wrote: > Hi, > I looked in the language definition and was surprised. Is there > really no multi-line/block comment defined in R? > > I wanted to comment out 20 lines that I'm moving to a function but > didn't want to delete them. Is there no defined way to get around > using a # on each of the 20 lines?
This topic has come up before and the answer seems to be no, although you can do tricky things like defining a function containing the comment as a quoted string (beginning and ending with quote marks), or putting a quoted string after an if() for a condition that isn't met. It helps that line breaks are allowed in quoted strings. However With (x)emacs and ESS, you can say M-x comment-region after defining a region with point and mark. I got tired of typing this, so I defined the following in my .xemacs/init.el and .emacs files: (global-set-key "\M-r" 'comment-region) So now I do it with "alt-R". That key may have had some other purpose, but not one I ever used. I think the alt key is something else on a Mac. And I have no idea whether this will work on Windows. Jon -- Jonathan Baron, Professor of Psychology, University of Pennsylvania Home page: http://www.sas.upenn.edu/~baron ______________________________________________ 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.
