GNU Emacs is an extensible, customizable text editor - and more. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing.The features of GNU Emacs include:Content-sensitive editing modes, including syntax coloring, for a wide-range of file typesComplete built-in documentation, including a tutorial for new usersFull Unicode support for nearly all human languages and their scriptsHighly customizable, using Emacs Lisp code or a graphical interfaceIncludes a project planner, mail and news reader, debugger interface, calendar, and more

GNU Emacs

GNU PSPP is a program for the statistical analysis of sampled data. It is a Free replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions. The most important of these exceptions are, that there are no “time bombs”; your copy of PSPP will not “expire” or deliberately stop working in the future. Neither are there any artificial limits on the number of cases or variables which you can use. There are no additional packages to purchase in order to get “advanced” functions; all functionality that PSPP currently supports is in the core package.PSPP is a stable and reliable application. It can perform descriptive statistics, T-tests, anova, linear and logistic regression, measures of association, cluster analysis, reliability and factor analysis, non-parametric tests and more. Its backend is designed to perform its analyses as fast as possible, regardless of the size of the input data. You can use PSPP with its graphical interface or the more traditional syntax commands.A brief list of some of PSPP's features.Support for over 1 billion casesSupport for over 1 billion variablesSyntax and data files which are compatible with those of SPSSA choice of terminal or graphical user interfaceA choice of text, postscript, pdf, opendocument, html or TeX output formatsInter-operability with: LibreOffice, Apache OpenOffice, Gnumeric and other free softwareEasy data import from spreadsheets, text files and database sourcesThe capability to open, analyse and edit two or more datasets concurrentlyA user interface supporting all common character setsThe user interface has been translated to multiple languagesVery fast statistical procedures, even on very large data setsNo license fees and no expiration periodNo unethical “end user license agreements”A fully indexed user manualFreedom ensured; It is licensed under the GPLv3 or laterPortability; Runs on many different computers and many different operating systemsPSPP is particularly aimed at statisticians, social scientists and students requiring fast convenient analysis of sampled data.

GNU PSPP

GNU PSPP is a program for statistical analysis of sampled data

Apps by Free Software Foundation

GNU Emacs

GNU PSPP