Vincy: On Wed, Jul 13, 2011 at 3:27 AM, Vincy Pyne <vincy_p...@yahoo.ca> wrote: > Meaning of %% > > Thanks a lot for the guidance. > > Before posting this query, I had tried following things. > >> ?%% > Error: unexpected SPECIAL in "?%%" >> ??%% > Error: unexpected SPECIAL in "??%%"
Instead of guessing,why not try reading the Help documentation more carefully (a failing that I,too, sometimes commit). help(help) says: topic usually, a name or character string specifying the topic for which help is sought. A character string (enclosed in explicit single or double quotes) is always taken as naming a topic. The DETAILS section then tells us: Some topics need to be quoted (by backticks) or given as a character string. There include those which cannot syntactically appear on their own such as unary and binary operators, function and control-flow reserved words (including if, else for, in, repeat, while, break and next. The other reserved words can be used as if they were names, for example TRUE, NA and Inf. %% is a unary operator and ence you need: help("%%") or ?"%%" Moral: The docs sometimes require careful reading -- but the information is almost always there, so they should be the first place to go to, not this list. -- Bert > > I also tried search.r-project.org and tried to search there also, but no luck. > >> help("%%") GIVES ME > > Error in file(out, "wt") : cannot open the connection > > In addition: Warning message: > > In file(out, "wt") : > > cannot open file 'C:\DOCUME~1\LOCALS~1\Temp\RtmpoCnAxB\Rtxt52325f7': No such > file or directory > > > Regards > > Vincy > > > --- On Wed, 7/13/11, ONKELINX, Thierry <thierry.onkel...@inbo.be> wrote: > > From: ONKELINX, Thierry <thierry.onkel...@inbo.be> > Subject: RE: [R] Meaning of "%%" > To: "Vincy Pyne" <vincy_p...@yahoo.ca>, "r-help@r-project.org" > <r-help@r-project.org> > Received: Wednesday, July 13, 2011, 10:13 AM > > help("%%") > > ---------------------------------------------------------------------------- > ir. Thierry Onkelinx > Instituut voor natuur- en bosonderzoek > team Biometrie & Kwaliteitszorg > Gaverstraat 4 > 9500 Geraardsbergen > Belgium > > Research Institute for Nature and Forest > team Biometrics & Quality Assurance > Gaverstraat 4 > 9500 Geraardsbergen > Belgium > > tel. + 32 54/436 185 > thierry.onkel...@inbo.be > www.inbo.be > > To call in the statistician after the experiment is done may be no more than > asking him to perform a post-mortem examination: he may be able to say what > the experiment died of. > ~ Sir Ronald Aylmer Fisher > > The plural of anecdote is not data. > ~ Roger Brinner > > The combination of some data and an aching desire for an answer does not > ensure that a reasonable answer can be extracted from a given body of data. > ~ John Tukey > > >> -----Oorspronkelijk bericht----- >> Van: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] >> Namens Vincy Pyne >> Verzonden: woensdag 13 juli 2011 12:00 >> Aan: r-help@r-project.org >> Onderwerp: [R] Meaning of "%%" >> >> Dear r helpers >> >> This may be very elementary question but I couldn't figure out what does the >> operator %% do? >> >> E.g. >> >> p <- 100 >> q <- 200 >> >> p%%q >> [1] 100 >> >> q%%p >> [1] 0 >> >> Please guide. >> >> Vincy >> >> [[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. > > [[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. > > -- "Men by nature long to get on to the ultimate truths, and will often be impatient with elementary studies or fight shy of them. If it were possible to reach the ultimate truths without the elementary studies usually prefixed to them, these would not be preparatory studies but superfluous diversions." -- Maimonides (1135-1204) Bert Gunter Genentech Nonclinical Biostatistics 467-7374 ______________________________________________ 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.