Some other software packages are from smaller or independent organizations or universities, such as Instat or Irristat. Some of the free software packages are from governmental or NGO organizations, such as Epi Info, from CDC, and IDAMS from UNESCO. This article is a review of the general statistical packages.īrief history of free statistical software ![]() Some packages are developed for specific purposes (e.g., time series analysis, factor analysis, calculators for probability distributions, etc.), while others are general packages, with a variety of statistical procedures. These packages come from a variety of sources, including governments, nongovernmental organizations (NGOs) like UNESCO, and universities, and are also developed by individuals. In general, free statistical software gives results that are the same as the results from commercial programs, and many of the packages are fairly easy to learn, using menu systems, although a few are command-driven. ![]() 1 Brief history of free statistical softwareįree statistical software is a practical alternative to commercial packages.
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