biogeme 3.2.8 [2021-07-26]

Python package

Home page: http://biogeme.epfl.ch

Submit questions to https://groups.google.com/d/forum/biogeme

Michel Bierlaire, Transport and Mobility Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL)

This file has automatically been generated on 2021-07-26 19:46:23.259987

Report file: 06unifMixture.html
Database name: swissmetro

Estimation report

Number of estimated parameters: 5
Sample size: 6768
Excluded observations: 3960
Init log likelihood: -6921.972
Final log likelihood: -5214.959
Likelihood ratio test for the init. model: 3414.025
Rho-square for the init. model: 0.247
Rho-square-bar for the init. model: 0.246
Akaike Information Criterion: 10439.92
Bayesian Information Criterion: 10474.02
Final gradient norm: 3.2323E-02
Number of draws: 100000
Draws generation time: 0:12:26.666696
Types of draws: ['B_TIME_RND: UNIFORMSYM']
Nbr of threads: 36
Algorithm: Newton with trust region for simple bound constraints
Proportion analytical hessian: 100.0%
Relative projected gradient: 5.681694e-06
Relative change: 0.0011492293590019873
Number of iterations: 6
Number of function evaluations: 19
Number of gradient evaluations: 7
Number of hessian evaluations: 7
Cause of termination: Relative gradient = 5.7e-06 <= 6.1e-06
Optimization time: 1:04:22.444514

Estimated parameters

NameValueStd errt-testp-valueRob. Std errRob. t-testRob. p-value
ASC_CAR0.1450.05272.750.005910.05332.720.00654
ASC_TRAIN-0.3850.0638-6.031.64e-090.066-5.835.46e-09
B_COST-1.280.0627-20.400.0866-14.80
B_TIME-2.320.129-1800.126-18.40
B_TIME_S2.880.21513.400.214.40

Correlation of coefficients

Coefficient1Coefficient2CovarianceCorrelationt-testp-valueRob. cov.Rob. corr.Rob. t-testRob. p-value
ASC_TRAINASC_CAR0.002180.649-10.600.002410.685-10.90
B_COSTASC_CAR0.0001850.0559-17.900.0001720.0373-14.20
B_COSTASC_TRAIN-0.000182-0.0456-9.760-0.00032-0.0559-7.991.33e-15
B_TIMEASC_CAR-0.00446-0.657-14.70-0.00445-0.663-14.80
B_TIMEASC_TRAIN-0.0053-0.645-10.90-0.00549-0.66-110
B_TIMEB_COST0.002340.29-8.282.22e-160.003530.323-8.164.44e-16
B_TIME_SASC_CAR0.005540.49114.100.005510.51715.30
B_TIME_SASC_TRAIN0.004750.34716.200.004550.34517.40
B_TIME_SB_COST-0.00367-0.27317.40-0.00444-0.25717.50
B_TIME_SB_TIME-0.0233-0.84215.70-0.0208-0.82716.60

Smallest eigenvalue: 16.4248

Largest eigenvalue: 1006.02

Condition number: 61.2501