DataMelt (DMelt), is a platform for numeric computation, data analysis, statistics and data visualization. DMelt can be used for analysis of large data volumes, data mining, statistical analyses and math computations. DMelt creates high-quality vector-graphics images (SVG, EPS, PDF) that can be included in LaTeX and other text-processing systems. This computational platform can be used with Python (Jython), Java, Groovy, Ruby (JRuby), BeanShell and Octave programming languages.
Nelson is an array programming language providing a powerful open computing environment for engineering and scientific applications using modern C/C++ libraries (Boost, Eigen, …) and others state of art numerical libraries. It has sophisticated data structures (including cell, struct, linear systems, …), an interpreter and a high level programming language. Nelson has been developped to be an open/modular system where an user can define these own data types and operations on these data types b
GNU 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.
trend is a general-purpose, efficient trend graph for "live" data. Data is read in ASCII form from a file or continuously from a FIFO and displayed in real-time into a multi-pass trend (much like a CRT oscilloscope). trend can be used as a rapid analysis tool for progressive or time-based data series together with trivial scripting.