In RStudio select the lines to be commented (or uncommented) and press Ctrl+/ or select comment/uncomment on the Edit menu tab
---------------------------------------------- David L Carlson Associate Professor of Anthropology Texas A&M University College Station, TX 77843-4352 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of Ted Harding > Sent: Monday, May 07, 2012 2:27 AM > To: r-help@r-project.org > Subject: Re: [R] commenting out a block of R code > > In vim, first move to the top line of the block. > Then press Shift+V (i.e. upper-case V); this line will then be > highlighted. > Then move down (down-arrow key) to the bottom line of the block; > the whole block will then be highlighted. > > At this stage enter > > :s/^/# / > > (The "g" in Don's sequence is not needed -- it is for global > substitution within a line). > > This is easy and quick in vim, and does not require entering line > numbers. I'm not sure now (long time since I used vi) whether > it also works as stated for vi. > > Ted. > > On 07-May-2012 03:16:36 Don McKenzie wrote: > > in vi (vim too?), in edit mode > > > >:a,bs/^/# /g > > > > inserts "# " at the beginning of lines a through b > > > > > > On 6-May-12, at 7:41 PM, Joshua Wiley wrote: > > > >> Hi Ranjan, > >> > >> To me, this is really a text editors job. Feature-rich editors make > >> it trivial, for example in Emacs, you can select a region (whatever > >> size you want) and M-x comment-region automatically comments every > >> line in that region. Similarly M-x uncomment-region will uncomment > >> every line. If you were doing this all the time, you could bind > some > >> keyseries to do it for you. Vim has something similar, though I > >> forget the exact command. > >> > >> A hack is: > >> > >> if (FALSE) { > >> all the lines > >> you want > >> to be `commented' > >> } > >> > >> which will leave them unevaluated at least. Both of these have been > >> suggested before on the list, which is probably why Brian Ripley > >> suggested searching the archives. > >> > >> Cheers, > >> > >> Josh > >> > >> > >> On Sun, May 6, 2012 at 7:31 PM, Ranjan Maitra <mai...@iastate.edu> > >> wrote: > >>> Dear friends, > >>> > >>> Is there an easy way of commenting out a block of R code after it > has > >>> been written? (I am aware that R-aware editors can insert # > >>> line-by-line while it is being written, but I want to basically > block > >>> out chunks of R code in a few strokes.) > >>> > >>> This question was asked on this mailing list some time ago: > Professor > >>> Ripley's answer was to try the following: > >>> > >>> RSiteSearch(string="comment multiple lines") > >>> > >>> Perfectly fine, but inexplicably, I got searches back (seven > >>> pages) which do not seem to have any connection with what I am > >>> looking > >>> for. > >>> > >>> Is there an easy way of doing this? > >>> > >>> Many thanks and best wishes, > >>> Ranjan > >>> > >>> ______________________________________________ > >>> 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. > >> > >> > >> > >> -- > >> Joshua Wiley > >> Ph.D. Student, Health Psychology > >> Programmer Analyst II, Statistical Consulting Group > >> University of California, Los Angeles > >> https://joshuawiley.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. > > > > In science, 'fact' can only mean 'confirmed to such a degree that it > > would be perverse > > to withhold provisional assent.' I suppose that apples might start to > > rise tomorrow, > > but the possibility does not merit equal time in physics classrooms. > > -- Stephen Jay Gould > > > > > > > > Don McKenzie, Research Ecologist > > Pacific Wildland Fire Sciences Lab > > US Forest Service > > phone: 206-732-7824 > > > > Affiliate Professor > > School of Environmental and Forest Sciences > > University of Washington > > > > ______________________________________________ > > 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. > > ------------------------------------------------- > E-Mail: (Ted Harding) <ted.hard...@wlandres.net> > Date: 07-May-2012 Time: 08:27:10 > This message was sent by XFMail > > ______________________________________________ > 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.
