Software and code

The software on this site comes with no guarantees and the author cannot be held liable for any errors. Use of this software should be acknowledged.

Apollo: a globally leading package for choice modelling

Apollo is one of the most widely used software packages for the estimation and application of choice models. Visit the software site at www.ApolloChoiceModelling.com

Please cite:

Hess, S. & Palma, D. (2019), Apollo: a flexible, powerful and customisable freeware package for choice model estimation and application, Journal of Choice Modelling, 32, September 2019, 100170.

Tools for for calculating standard errors of parameter transformations

Free R code for the calculation of standard errors for the correlation in multivariate Normal distributions

Spreadsheet tool for the calculation of standard errors for differences, sums, ratios and products of coefficients.

Please cite:

Daly, A.J., Hess, S. & de Jong, G. (2012), Calculating errors for measures derived from choice modelling estimates, Transportation Research Part B 46(2), pp. 333-341.

Tool for the generation of conditional parameter distributions from Mixed Logit estimates

Tool for the generation of conditional parameter distributions from Mixed Logit estimates (version for users with an existing Matlab installation)

Tool for the generation of conditional parameter distributions from Mixed Logit estimates (version for users without a Matlab installation - large file size!)

Please cite:

Hess, S. (2010), Conditional parameter estimates from Mixed Logit models: distributional assumptions and a free software tool, Journal of Choice Modelling, 3(2), pp. 134-152.