RStudio™ is a new integrated development environment (IDE) for          R.          RStudio combines an intuitive user interface with powerful coding tools to help you get the most out of R.        
Productive                     
RStudio brings together everything you need to be productive with R in a single, customizable environment. Its intuitive interface and powerful coding tools help you get work done faster.         

Runs Everywhere
RStudio is available for  all major platforms  including Windows, Mac OS X, and Linux. It can even run alongside R on a server, enabling multiple users to access the RStudio IDE using a web browser.

Free & Open  
Like R, RStudio is available under an   open source license  that guarantees the freedom to share and change the software, and to make sure it remains free software for all its users.         

RStudio下载地址：http://www.rstudio.org/download/

截图欣赏：更多截图见http://www.rstudio.org/screenshots/
Windows         


Source, Console, Workspace, and Plots


Tabbed Source Editor         


RStudio下载地址：http://www.rstudio.org/download/