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Research Software - Statistics

Changeover_multiobj

Changeover design algorithms that aim to maximize the average efficiency factors of direct and residual treatment effects.

A multiple objective algorithm that aims to simultaneously maximize both efficiency factors.

The Changeover_multiobj application can be downloaded from Changeover_multiobj.zip. The file is 46.5 kbytes.

The algorithms will run in a Windows environment.

Developer
Department of Statistics
The University of Waikato
Hamilton, New Zealand.


Changeover_compound

Changeover design algorithms that aim to maximize the average efficiency factors of direct and residual treatment effects.

The objective function is a weighted linear combination of the reciprocals of the two efficiency factors. The weights are chosen by the user.

The Changeover_compound application can be downloaded from Changeover_compound.zip. The file is 45 kbytes.

The algorithms will run in a Windows environment.

Developer
Department of Statistics
The University of Waikato
Hamilton, New Zealand


Multimix

Dr Hunt's research concerns the clustering of observations using a finite mixture models approach, and where the EM algorithm is employed in the fitting of the model. The model can accommodate both categorical and continuous variables.

Multimix is a FORTRAN program to estimate the parameters of the distributions when fitting a mixture of K groups, by using this approach.

Developer
Dr Lyn Hunt
Department of Statistics
University of Waikato
Hamilton, New Zealand.