Assisted specification with Biogeme¶

Examples discussed in Bierlaire and Ortelli (2023) Assisted Specification with Biogeme 3.2.12

The example 10. Controlling a generated parameter for a missing segmentation category reproduces a common missing category problem. A has_pt_subscr segmentation contains one -99 observation, represented in the segmentation as minus_99, and the automatically generated coefficients for that category are fixed to zero in every catalog alternative before estimation.

Combine many specifications: exception is raised

Combine many specifications: exception is raised

One model among many

One model among many

Re-estimation of best models

Re-estimation of best models

Base model

Combine many specifications: assisted specification algorithm

Combine many specifications: assisted specification algorithm

Catalog for alternative specific coefficients

Catalog for alternative specific coefficients

Investigation of several choice models

Investigation of several choice models

Catalog for segmented parameters

Catalog for segmented parameters

10. Controlling a generated parameter for a missing segmentation category

10. Controlling a generated parameter for a missing segmentation category

Segmentations and alternative specific specification

Segmentations and alternative specific specification

Catalog of nonlinear specifications

Catalog of nonlinear specifications

Example of a catalog

Example of a catalog