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.
- Much code written for S will run unaltered under R.
- Produces publication-quality plots.
- Effective data handling and storage facility.
- Suite of operators for calculations on arrays--especially matrices.
- A large, coherent, integrated collection of intermediate tools for data analysis.
- Graphical facilities for data analysis and display either on screen or on hardcopy.
- A well developed, simple and effective programming language that includes conditionals, loops, user-defined recursive functions, and input/output facilities.
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