These programs are supplied 'as-is' with no warranty, express or implied. The user must satisfy themselves that correct output is being produced by each program. This is especially important when using user define subroutines or batch files. They will allow the estimation of parameter values by non-linear weighted least squares regression or the simulation of complex systems of differential equations.
Parameter estimation can be by normal or Bayesian methods.
A comprehensive list of weighting schemes is included. The model to be analyzed can be entered as a system of integrated equations or as a system of differential equations. Simulation with random error in parameters or data are also possible. A batch run can be repeated many times to assist in Monte Carlo type studies.