Well,... cat() is as Jeff describes.
However, print() is a generic function (see ?UseMethod) for which there are literally hundreds of different methods that may do far more/different than merely output character strings. For example, the print method for trellis objects, print.trellis, draws a graph of the object. The print method called for print(10) is the default method, for which ?print.default should be consulted: it is actually printing a vector of length 1, and the print method for vectors labels each line with the index of the first item printed. Please read An Intro to R or other R tutorial to learn about S3 methods. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Mon, Apr 17, 2017 at 3:01 PM, Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: > Please stop posting html email per the Posting Guide. You are only going to > reduce the chance of successfully communicating your questions to experienced > users on this list. > > Re cat vs print: the purpose of print is to show values much as they are > entered in source code, so quotes and escaped characters such as "\n" are > shown. Cat is intended to provide a way to send characters straight to the > console so the effects of special characters can be visible (i.e. getting > text on the next line when a "\n" occurs in a string). Thus the element > numbering is not relevant there. > -- > Sent from my phone. Please excuse my brevity. > > On April 17, 2017 12:18:36 AM PDT, Data MagicPro <datamagicpro2...@gmail.com> > wrote: >>Since both *cat * as well as * print * create a character vector for >>outputing on the screen. Still both give different results as apparant >>below. My query is why so ? >> >> >>> cat(10) >>10 >>> print(10) >>[1] 10 >> >>Why is the [1] of index number missing in case of *cat *? >> >>Thanks >>Ramnik >> >> [[alternative HTML version deleted]] >> >>______________________________________________ >>R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >>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 -- To UNSUBSCRIBE and more, see > 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 -- To UNSUBSCRIBE and more, see 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.
