biogeme 2.6a [Mon Apr 17 15:33:55 CEST 2017]

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 Tue Apr 18 19:54:26 2017

If you drag this HTML file into the Calc application of OpenOffice, or the spreadsheet of LibreOffice, you will be able to perform additional calculations.

Report file: 08boxcox.html
Sample file: __bin_swissmetro.dat

Formulas

Car utility: ASC_CAR + ( B_TIME * ( ( CAR_TT_SCALED ^ LAMBDA ) - ( 1 ) ) ) / LAMBDA + B_COST * CAR_CO_SCALED
Swissmetro utility: ASC_SM + ( B_TIME * ( ( SM_TT_SCALED ^ LAMBDA ) - ( 1 ) ) ) / LAMBDA + B_COST * SM_COST_SCALED
Train utility: ASC_TRAIN + ( B_TIME * ( ( TRAIN_TT_SCALED ^ LAMBDA ) - ( 1 ) ) ) / LAMBDA + B_COST * TRAIN_COST_SCALED

Statistics

Alt. 1 available: 6768
Alt. 1 chosen: 908
Alt. 2 available: 6768
Alt. 2 chosen: 4090
Alt. 3 available: 5607
Alt. 3 chosen: 1770
Cte loglikelihood (only for full choice sets): -6257.86
Null loglikelihood: -6964.66

Estimation report

Number of estimated parameters: 5
Sample size: 6768
Excluded observations: 3960
Init log likelihood: -6964.663
Final log likelihood: -5292.095
Likelihood ratio test for the init. model: 3345.135
Rho-square for the init. model: 0.240
Rho-square-bar for the init. model: 0.239
Akaike Information Criterion: 10594.191
Bayesian Information Criterion: 10628.291
Final gradient norm: +3.253e-03
Diagnostic: Trust region algorithm with simple bounds (CGT2000): Convergence reached...
Iterations: 6
Data processing time: 00:00
Run time: 00:00
Nbr of threads: 12

Estimated parameters

Click on the headers of the columns to sort the table [Credits]

Name ValueStd errt-testp-valueRobust Std errRobust t-testp-value
ASC_CAR-0.004630.0471-0.100.92*0.0480-0.100.92*
ASC_TRAIN-0.4850.0614-7.900.000.0644-7.530.00
B_COST-1.080.0520-20.740.000.0680-15.860.00
B_TIME-1.670.0744-22.510.000.0766-21.880.00
LAMBDA0.5100.05199.830.000.07736.600.00

Correlation of coefficients

Click on the headers of the columns to sort the table [Credits]

Coefficient1Coefficient2CovarianceCorrelationt-testp-valueRob. cov.Rob. corr.Rob. t-testp-value
ASC_CARLAMBDA-0.000543-0.222-6.650.000.0004280.115-5.970.00
ASC_TRAINB_COST2.88e-060.0009027.380.00-0.000245-0.05606.170.00
B_COSTB_TIME0.0005750.1497.080.000.001310.2516.720.00
ASC_TRAINB_TIME-0.00357-0.7829.280.00-0.00387-0.7868.930.00
ASC_CARASC_TRAIN0.001880.65110.190.000.002180.70510.500.00
ASC_TRAINLAMBDA-0.000715-0.224-11.200.000.001160.233-11.260.00
ASC_CARB_COST0.0004810.19717.070.000.0004360.13313.800.00
B_COSTLAMBDA-0.000157-0.0582-21.020.00-0.000985-0.187-14.170.00
ASC_CARB_TIME-0.00231-0.66115.010.00-0.00245-0.66814.610.00
B_TIMELAMBDA0.001420.367-29.750.00-0.000703-0.119-18.990.00

Smallest singular value: 1.42688