Complete list to be found on statistical-software.net
- Free license
- Available in the R language are functions for virtually every data manipulation, statistical model, or chart that the data analyst could ever need.
- Goes far beyond the traditional bar chart and line plot with very advanced charting capabilities.
- The source code is open for inspection and modification to anyone who wants to see how the methods and algorithms work under the covers.
- R Project is available on Apponfly.
- Very steep learning curve
- Doesn't have very friendly beginner support
- Limited graphical user interface
- Sometimes, the program might tend to lag.