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PSPP logo
Developer(s) GNU Project
Stable release 0.8.5 / June 20, 2015 (2015-06-20)[1]
Written in C
Operating system GNU
Type Statistics
License GNU General Public License
Website //pspp/

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[2] and conventional command-line interface. It is written in C and uses GNU Scientific Library for its mathematical routines. The name has "no official acronymic expansion".[3]


  • Features 1
    • Origins 1.1
    • Release history 1.2
  • Third Party Reviews 2
  • See also 3
  • References 4
  • External links 5
    • Third-party resources 5.1


This software provides a comprehensive set of capabilities including frequencies, cross-tabs comparison of means (t-tests and one-way ANOVA); linear regression, logistic regression, reliability (Cronbach's alpha, not failure or Weibull), and re-ordering data, non-parametric tests, factor analysis, cluster analysis, principal components analysis, chi-square analysis and more. Some very advanced statistical tests are as of 2014 not yet implemented.

At the user's choice, statistical output and graphics are available in ASCII, PDF, PostScript, SVG or HTML formats. A range of statistical graphs can be produced, such as histograms, pie-charts scree plots and np-charts.

PSPP can import Gnumeric and OpenDocument spreadsheets, Postgres databases, comma-separated values and ASCII files. It can export files in the SPSS 'portable' and 'system' file formats and to ASCII files. Some of the libraries used by PSPP can be accessed programmatically; PSPP-Perl provides an interface to the libraries used by PSPP.


The PSPP project (originally called "Fiasco") was born at the end of the 1990s as a free software replacement for SPSS, which was a data management and analysis tool, at the time produced by SPSS Inc. The nature of SPSS's proprietary licensing and the presence of digital restrictions management motivated the author to write an alternative which later became functionally identical, but with permission for everyone to copy, modify and share.

Release history

PSPP 0.7.9 running on Ubuntu GNU/Linux
PSPP 0.8.3 running on Windows 7.
Release Date
0.8.5 1 June
0.8.4 1 September
0.8.3 1 April
0.8.2 1 January
0.8.1 1 September
0.8.0 1 July
0.7.11 1 July
0.7.10 1 March
0.7.9 1 February
0.7.8 1 May
0.7.7 1 March
0.7.6 1 October
0.7.5 1 May
0.7.4 1 February
0.6.2 1 October
0.6.1 1 October
0.6.0 1 June 1 August
0.4.0 1 August
0.3.0 1 April
0.2.4 1 January
0.1.0 1 August

Third Party Reviews

In the book "SPSS For Dummies", the author discusses PSPP under the heading of "Ten Useful Things You Can Find on the Internet".[4] In 2006, the South African Statistical Association presented a conference which included an analysis of how PSPP could be used as an alternative to SPSS.

See also


  1. ^
  2. ^
  3. ^
  4. ^ Facsimile of Book Index

External links

Third-party resources

  • Review by UK SPSS user group (as of version 0.1.22)
  • Using PSPP to import SPSS data into R
  • PSPP review in Slovenian language (English translation via Google)
  • User review from communication research info
  • Yet another user review
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