PSPP : Free alternative for SPSS

Data analysis software SPSS is very popular among social science researchers. It provides various modules for the analysts but the problem is it comes with a big price tag. From Descriptive statistics to complex sampling, bootstrapping, SEM IBM offers pay per person per year plan this means your licence for using the software is valid for just one year and you have to pay for the following year. The product pricing for IBM SPSS is shown here:
Not every individual is able to afford SPSS. So, here I suggest a free alternative a open source software PSPP. 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. The name PSPP has "no official acronymic expansion". It is just  P for S and S for P .
This software provides a comprehensive set of capabilities which includes:
  • Frequencies,
  • Cross-tabs comparison of means (t-tests and one-way ANOVA);
  • Linear regression,
  • Logistic regression,
  • Reliability tests (Cronbach's alpha, not failure or Weibull),
  • Non-parametric tests,
  • Factor analysis,
  • Cluster analysis,
  • Principal components analysis,
  • Chi-square analysis and more.
Other benefits of using PSPP are it supports 1 billion cases and variables, Syntax and data files which are compatible with those of SPSS, No license fees, No expiration period.
Where to download?
PSPP is offered under GNU general public licence. You can download the software for Linux, Mac and windows form its official website.
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