GNU PSPP is a program for statistical analysis of sampled data. It is a free as in freedom replacement for other proprietary programs, and appears very similar to it with a few exceptions. In my effort to bring low cost, powerful resources to our undergraduate and graduate students, I have used PSPP for statistical analysis.

PSPP is a free software application for analysis of sampled data, intended as a free alternative for IBM SPSS Statistics. It has a graphical user interface and conventional command-line interface. It is written in C and uses GNU Scientific Library for its mathematical routines.

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