* a well-developed, simple and effective programming language which includes conditionals, loops, user-defined recursive functions and input and output facilities. * graphical facilities for data analysis and display either on-screen or on hardcopy, and * a large, coherent, integrated collection of intermediate tools for data analysis, ![]() * a suite of operators for calculations on arrays, in particular matrices, * an effective data handling and storage facility, R is an integrated suite of software facilities for data manipulation, calculation and graphical display. ) and graphical techniques, and is highly extensible. R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering. R is a free software environment for statistical computing and graphics.
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