Post by Flavio
Check the manual here.
R (http://cran.at.r-project.org) is a comprehensive statistical environment and programming language for professional data analysis and graphical display. The associated Bioconductor project provides many additional R packages for statistical data analysis in different life science areas, such as tools for microarray, next generation sequence and genome analysis. The R software is free and runs on all common operating systems.
Scope of this Manual
This R tutorial provides a condensed introduction into the usage of the R environment and its utilities for general data analysis and clustering. It also introduces a subset of packages from the Bioconductor project. The included packages are a ‘personal selection’ of the author of this manual that does not reflect the full utility specturm of the R/Bioconductor projects. Many packages were chosen, because the author uses them often for his own teaching and research. To obtain a broad overview of available R packages, it is strongly recommended to consult the official Bioconductor and R project sites. Due to the rapid development of most packages, it is also important to be aware that this manual will often not be fully up-to-date. Because of this and many other reasons, it is absolutely critical to use the original documentation of each package (PDF manual or vignette) as primary source of documentation. Users are welcome to send suggestions for improving this manual directly to its author.