biogeme 2.6a [Mon Apr 17 15:32:48 CEST 2017]

Michel Bierlaire, EPFL

This file has automatically been generated.

Tue Apr 18 19:51:23 2017

Tip: click on the columns headers to sort a table [Credits]

Model: Ordinal Logit
Number of estimated parameters: 4
Number of observations: 6768
Number of individuals: 6768
Null log likelihood: -7435.408
Cte log likelihood: -6257.857
Init log likelihood: -6674.136
Final log likelihood: -5789.309
Likelihood ratio test: 3292.197
Rho-square: 0.221
Adjusted rho-square: 0.221
Final gradient norm: +9.076e-04
Diagnostic: Normal termination. Obj: 6.05545e-06 Const: 6.05545e-06
Iterations: 12
Run time: 00:01
Variance-covariance: from finite difference hessian
Sample file: ../swissmetro.dat

Utility parameters

Name Value Std err t-testp-valueRobust Std err Robust t-testp-value
B_COST1.260.047726.490.000.058521.570.00
B_TIME-0.02210.0393-0.560.57*0.0401-0.550.58*
tau1-1.030.0667-15.450.000.0680-15.160.00
tau22.200.072030.610.000.070631.200.00

Difference of utility functions

B_TIME * TRAIN_TT_SCALED + B_COST * TRAIN_COST_SCALED - ( $NONE )

Correlation of coefficients

Coefficient1 Coefficient2CovarianceCorrelationt-testp-valueRob. cov.Rob. corr.Rob. t-testp-value
B_COST tau20.0009120.266-12.530.00 0.001060.257-11.860.00
B_COST B_TIME-0.000767-0.40917.560.00 -0.00125-0.53314.810.00
B_TIME tau10.001940.74121.960.00 0.001910.70220.570.00
B_COST tau10.0001680.052928.700.00 0.0001780.044826.150.00
B_TIME tau20.001950.688-41.840.00 0.001690.597-39.270.00
tau1 tau20.003760.784-70.580.00 0.003810.794-72.640.00

User defined linear constraints

1*tau1 + -1*tau2 <= 0 [-3.23325 <= 0

Smallest singular value of the hessian: 2.02762