The Item Response Theory (IRT) library is a set of functions to estimate the items and abilities from the responses of subjects to a questionnaire. The IRT models supported are the logistic model, the nominal response model, the graded response model, and smoothing by penalization and kernel. The project also hosts rirt, a package for the R Project for Statistical Computing, and eirt, an add-in for Excel.
The Cheap Matrix Package contains ready to use matrix and vector classes, optimized for minimum memory over speed. They were designed to have a natural syntax. It is possible to link with LAPACK, and utility functions. There is a framework for coding optimizers and building models, together with examples and documentation.
PROMPT is a system for retrieval, analysis, mapping and comparison of protein sets. It allows easy mapping of different types of sequence identifiers, automatic data retrieval and integration, many analysis and comparison algorithms, and a full-featured GUI application. Exhaustive statistical tests are conducted automatically in appropriate cases, but can be performed manually. All analysis results can be viewed or visualized and exported in various formats. All methods can be used in your own Java code or with beanshell scripting in your own scripts, a pipeline, or grid systems.
gfit analyzes data using models. gfit lets the user create a model for virtually any type of system using a minimal amount of computer code. It is particularly useful for studying various systems in biophysics, biochemistry, and cell biology. The interface for gfit models specifies relationships between input and output variables in a rule-based fashion. It provides flexibility and allows the user to reuse same models for many related problems.
KGameOfLife is an application that simulates the classical Game of Life. It consists of a collection of cells which, based on a few mathematical rules, can live, die, or multiply. Depending on the initial conditions, the cells form various patterns throughout the course of the game.