What are some alternatives?
When comparing SHAZAM (statistical analysis) and R Lang, you can also consider the following products
RStudio - RStudio™ is a new integrated development environment (IDE) for R.
GNU Octave - GNU Octave is a programming language for scientific computing.
PSPP - PSPP is a free software application for analysis of sampled data.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
RKWard - RKWard is an easy to use, transparent frontend to the R programming language, a very powerful, yet...
SOFA Statistics - SOFA Statistics Open For All - the user-friendly, open-source statistics, analysis, & reporting software package.