G*Power is a tool to compute statistical power analyses for many different t tests, F tests, χ2 tests, z tests and some exact tests. G*Power can also be used to compute effect sizes and to display graphically the results of power analyses. The software also allows you to generate graphs based on the data you input.
It is a general statistical package useful in teaching statistical ideas.
Designed by researchers to help you analyze scientific and business data.
Statistical and mathematical software that handles all your statistical needs.
Performs regression analysis to estimate values of parameters.
This is the enhanced distribution of R from Microsoft.