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Who created R?
R was created by Ross Ihaka and Robert Gentleman at the University of Auckland, New Zealand, and is currently developed by the R Development Core Team. R is freely available under the GNU General Public License, and pre-compiled binary versions are provided for various operating systems like Linux, Windows and Mac.
What is R software?
R is a programming language and software environment for statistical analysis, graphics representation and reporting. R was created by Ross Ihaka and Robert Gentleman at the University of Auckland, New Zealand, and is currently developed by the R Development Core Team. R is freely available under the GNU General Public License, ...
What does R mean in movies?
R 1. A trademark for a movie rating indicating that admission will be granted only to persons of or over a certain age, usually 17, unless accompanied by a parent or guardian.
What is the intrinsic rate of increase of a population?
the intrinsic rate of increase of a population, equivalent to the difference between the birth and death rates divided by the number of individuals in the population. Also called Malthusian parameter.
Examples in Each Chapter
With our "Try it Yourself" editor, you can edit R code and view the result.
R Examples
Learn by examples! This tutorial supplements all explanations with clarifying examples.
R Quiz
Learn by taking a quiz! This quiz will give you a signal of how much you know about R.
What is apropos in R?
The apropos () function searches for objects, including functions, directly accessible in the current R session that have names that include a specified character string. This may be a literal string or a regular expression to be used for pattern-matching (see ?"regular expression" ). By default, string matching by apropos () is case-insensitive. For example, apropos ("^glm") returns the names of all accessible objects that start with the (case-insensitive) characters "glm".
What is help.start in R?
help.start () starts and displays a hypertext based version of R’s online documentation in your default browser that provides links to locally installed versions of the R manuals, a listing of your currently installed packages and other documentation resources.
What is rsitesearch?
RSiteSearch () uses an internet search engine (also see below) to search for information in function help pages and vignettes for all CRAN packages, and in CRAN task views (described below ). Unlike the apropos () and help.search () functions, RSiteSearch () requires an active internet connection and doesn’t employ regular expressions. Braces may be used to specify multi-word terms; otherwise matches for individual words are included. For example, RSiteSearch (" {generalized linear model}") returns information about R functions, vignettes, and CRAN task views related to the term "generalized linear model" without matching the individual words "generalized", "linear", or "model".
Is it good to ask for help in R?
Before asking others for help, it’s generally a good idea for you to try to help yourself. R includes extensive facilities for accessing documentation and searching for help . There are also specialized search engines for accessing information about R on the internet, and general internet search engines can also prove useful ( see below ).
