R is a language and environment for statistical computing and graphics. It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories (formerly AT&T, now Lucent Technologies) by John Chambers and colleagues. R can be considered as a different implementation of S. There are some important differences, but much code written for S runs unaltered under R.
R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering, ...) and graphical techniques, and is highly extensible. The S more...
- utf8ToInt() now checks that its input is valid UTF-8 and returns NA if it is not.
- install.packages() now allows type = "both" with repos = NULL if it can infer the type of file.
- nchar(x, *) and nzchar(x) gain a new argument keepNA which governs how the result for NAs in x is determined. For the R 3.2.x series, the default remains FALSE which is more...
- OS X 10.9 or later
- X11 system manager (optional, now requires XQuartz)
- GNU g77 compiler and tcltk libraries included with the installer