R is the world’s most powerful programming language for statistical computing, machine learning and graphics as well as a thriving global community of users, developers and contributors.
Microsoft R Open 3.3.3 was
released April 4th.
Get the current version today.

Microsoft R Open

Microsoft R Open is the enhanced distribution of open source R from Microsoft Corporation. Enhancements include multi-core processing, a fixed CRAN repository date, and reproducible R with the checkpoint package.

CRAN Time Machine

For the purpose of reproducibility, MRAN hosts daily snapshots of the CRAN R packages and R releases as far back as Sept. 17, 2014. Use our Time Machine to browse CRAN contents from the past.

R Packages

Packages extend R with new functions and data. Whether you're using R to optimize portfolios, analyze genomic sequences, or to predict component failure times, experts in every domain have made resources, applications and code available for free online.