Free Six Sigma Tools

Description Link
PSPP – PSPP is a program for 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.
R – R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS.
Jaamsim -is a free and open source discrete-event simulation software which includes a drag-and-drop user interface, interactive 3D graphics, input and output processing, and model development tools and editors. Available for Windows, OSX and Linux.  JaamSim is GPLv3.
Neuroph is lightweight Java neural network framework to develop common neural network architectures. It contains well designed, open source Java library with small number of basic classes which correspond to basic NN concepts. Also has nice GUI neural network editor to quickly create Java neural network components. It has been released as open source under the Apache 2.0 license, and it’s FREE for you to use it.
Sage is a free open-source mathematics software system licensed under the GPL. It combines the power of many existing open-source packages into a common Python-based interface. Mission: Creating a viable free open source alternative to Magma, Maple, Mathematica and Matlab.
SciLab – free open source software for numerical computations.
TRIZ – The TRIZ Matrix is a database of known solutions (principles) able to overcome contradictions.
Gnumeric – The Gnumeric spreadsheet is part of the GNOME desktop environment: a project to create a free, user friendly desktop environment.
Number Empire – a website providing a variety of free mathematical tools.
Boost – Boost provides free peer-reviewed portable C++ source libraries.  We emphasize libraries that work well with the C++ Standard Library. Boost libraries are intended to be widely useful, and usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use.
Python – Python is a programming language that lets you work more quickly and integrate your systems more effectively. You can learn to use Python and see almost immediate gains in productivity and lower maintenance costs.
Octave – Octave is a high-level interpreted language, primarily intended for numerical computations. It provides capabilities for the numerical solution of linear and nonlinear problems, and for performing other numerical experiments. It also provides extensive graphics capabilities for data visualization and manipulation. Octave is normally used through its interactive command line interface, but it can also be used to write non-interactive programs. The Octave language is quite similar to Matlab so that most programs are easily portable.
SOFA – Statistics Open For All
The user-friendly, open-source statistics, analysis, and reporting package.
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