NppToR!

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.

SOFA Statistics is an open-source statistical package, with an emphasis on ease of use, learn as you go, and beautiful output. The name stands for Statistics Open For All. It has a graphical user interface and can connect directly to MySQL, SQLite, MS Access, and MS SQL Server. Data can also be imported from CSV or MS Excel files. The main statistical tests available are Independent and Paired t-tests, Wilcoxon signed ranks, Mann–Whitney U, Pearsons chi square, Kruskal Wallis H, one-way ANOVA, Spearmans R, and Pearsons R. Nested tables can be produced with row and column percentages, totals, sd, mean, median, and sum. »

Revolution Analytics provide commercial support and software for the open source R - the world's most powerful statistics software.

Tinn-R, the R code editorTinn stands for the recursive acronym 'Tinn is not Notepad'. It is initially written as a small ASCII file editor primarily intended as a better replacement for the default Notepad.exe program distributed with Windows. With versions, it grew to a fairly complete, yet simple and compact code editor.Tinn is written in Delphi 5 and it runs only under Windows (9X/Me/2000/XP). It is free and distributed under GPL 2. The specific version (Tinn-R) contains enhancements to allow syntax highlighting of S language (in *.R, *.r, *.Q or *.q files), that is, the language used by the open source statistical software R (http://www.r-project.org ). It also pops up additional menu and toolbar when it detects Rgui running on the same computer. These addons interact with the R console and allow to submit code in part or in whole and to control R directly. »