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R is free and open-source software distributed under the GNU General Public License. [2][10] The language is implemented primarily in C, Fortran, and R itself. Precompiled executables are …

Please see the R FAQ for general information about R and the R Windows FAQ for Windows-specific information.

Oct 2, 2025 · R-squared is a statistical measure that represents the proportion of the variance for a dependent variable that’s explained by an independent variable.

Sep 11, 2025 · R is a free, open-source programming language tailored for data visualization and statistical analysis. Find out more about the R programming language below.

R is not just a programming language, but it is also an interactive ecosystem including a runtime, libraries, development environments, and extensions. All these features help you think about …

Jul 18, 2025 · Installing R and RStudio is the first step to working with R for data analysis, statistical modeling, and visualizations. This article will guide you through the installation …

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 …

This course is a set of tutorials sorted by category in which you will learn all the basics (and some more advanced content) to handle the R programming language.

Ordinary least squares regression of Okun's law. Since the regression line does not miss any of the points by very much, the R2 of the regression is relatively high. In statistics, the coefficient …