It is also available for Linux Systems (under Wine). It supports all Windows versions (Windows XP, Windows 7, Windows 8). OpenStat is a general-purpose free statistical software/ package. The following list of software is completely free and can be used in its fully functional mode. This was also open sourced to give everyone access to modify the software for their own personal needs.All these Statistical Software provides a wide variety of statistical analysis. The restrictions that were imposed by the licensing of SPSS encouraged the developer make an alternative to the software which was almost identical. PSPP project has been around for quite some time now, and was originally known as " Fiasco" in it's originally form as was always intended as being a replacement for the well known SPSS, a data management and analysis tool, as a free option of the software. PSPP uses libraries that can be accessed programmatically. The software is able to important Gnumeric and OpenDocument spreadsheets, comma separated values, Postgres databases, and ASCII files as well as export in the SPSS portable and system file formats, while also to ASCII files. These include pie charts, histograms, and np charts. At the command of the user, the statistical output and graphics are available in ASCII, HTML, PDF, PostScript, and SVG formats, which allows a range of statistical graphs to be produced. PSPP, the software itself, provides it's users a basic set of capabilities such as frequencies, logistic regression, reliability, linear regression, factor analysis, principal components analysis, and more. PSPP uses the GNU scientific library for its mathematical routines while also being written in C. To make it easier for users to use, it has a graphical user interface and a conventional command line interface. A free software for analysis of sampled data, PSPP is intended as a free alternative for IBM SPSS Statistics.
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