Constrained fits are an alternative to the standard chi-square minimization methods, used in particle physics. The construction of the chi-square function in complex cases with correlated data and systematic uncertainties becomes difficult, if the bias of the fit should be small. A more general alternative are least squares fits with equality constraints, where the relations between the data, their uncertainties, and the model expectation are simple and clear.
The program source files of a preliminary version, including a small test program,
are available in a tar-file:
Tar-file
The program source files of the current version, including a small test
program,
are available in a tar-file:
Tar-file
The software can be freely used for research and education. We expect that all publications describing work using this software quote at least one reference.
Disclaimer: This software is provided without any expressed or implied warranty. In particular there is no warranty of any kind concerning the fitness of this software for any particular purpose.