Simfit: simulation, statistical analysis, curve fitting and graph plotting.

Simfit is a free software OpenSource Windows/Linux package for simulation, curve fitting, statistics, and plotting, using a library of models or user-defined equations. It can be used in:

biology (nonlinear growth curves);
ecology (Bray-Curtis dendrograms);
psychology (factor analysis);
physiology (membrane transport);
pharamacology (dose response curves);
pharmacy (pharmacokinetics);
immunology (ligand binding);
biochemistry (calibration);
biophysics (enzyme kinetics);
epidemiology (survival analysis);
medical statistics (meta analysis);
chemistry (chemical kinetics);
physics (dynamical systems); and
mathematics (numerical analysis).

Clipboard data and spreadsheet export files can be analyzed, and macros to interface with Microsoft Office are provided.

Simdem is a package demonstrating how to use the Simfit GUI and graphics library to write Windows programs.

Simfit plotting styles
Frequently Asked Qustions
Documents and links
Simdem details
Download programs