PSPP is a free software application for analysis of sampled data. It has a graphical user interface and conventional command line interface. It is written in C, uses GNU Scientific Library for its mathematical routines, and plotutils for generating graphs.




























































I think that Number Analytics is good for beginners to R. R need coding and requires significant time to learn. Number Analytics does not need coding so that novices can start to use it right away. However, advanced analysis and graphs are not possible at Number Analytics. It would be great if you start with Number Analytics and learn R step by step.