biogeme 2.5 [Mon Jun 20 11:51:48 CEST 2016]

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

Submit questions to http://groups.yahoo.com/group/biogeme

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

This file has automatically been generated on Tue Jun 21 08:12:06 2016

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

Report file: 14selectionBias.html
Sample file: ../swissmetro.dat

Formulas

Car utility: ASC_CAR + B_TIME * CAR_TT_SCALED + B_COST * CAR_CO_SCALED
Swissmetro utility: ASC_SM + B_TIME * SM_TT_SCALED + B_COST * SM_COST_SCALED
Train utility: ASC_TRAIN + B_TIME * TRAIN_TT_SCALED + 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: 6
Sample size: 6768
Data processing time: 00:00
Excluded observations: 3960
Init log likelihood: -6964.663
Final log likelihood: -5169.642
Likelihood ratio test for the init. model: 3590.043
Rho-square for the init. model: 0.258
Rho-square-bar for the init. model: 0.257
Final gradient norm: +1.247e-04
Diagnostic: Convergence reached...
Iterations: 25
Run time: 00:02
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-0.3170.0443-7.160.000.0597-5.310.00
ASC_TRAIN-10.23.13-3.270.003.15-3.250.00
B_COST-1.110.0511-21.650.000.0672-16.460.00
B_TIME-1.130.0576-19.590.000.103-10.910.00
MU1.140.045924.940.000.046524.600.00
SB_TRAIN10.43.153.310.003.163.290.00

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
B_COSTB_TIME0.0005210.1770.300.76*0.001830.2640.200.84*
MUSB_TRAIN-0.142-0.982-2.900.00-0.144-0.981-2.890.00
ASC_TRAINB_COST0.007080.0443-2.920.00-0.0323-0.153-2.890.00
ASC_TRAINB_TIME0.04850.269-2.930.000.02830.0869-2.900.00
ASC_CARASC_TRAIN-0.0268-0.1933.160.00-0.0319-0.1693.140.00
ASC_TRAINSB_TRAIN-9.84-1.00-3.290.00-9.94-1.00-3.270.00
ASC_CARSB_TRAIN0.02780.199-3.420.000.03480.185-3.410.00
B_TIMESB_TRAIN-0.0505-0.279-3.650.00-0.0345-0.106-3.640.00
B_COSTSB_TRAIN-0.00716-0.0445-3.660.000.03160.149-3.660.00
ASC_TRAINMU0.1410.984-3.690.000.1440.983-3.670.00
ASC_CARB_TIME-0.00155-0.6078.860.00-0.00498-0.8065.210.00
ASC_CARB_COST0.0005080.22413.230.000.0002430.06059.060.00
ASC_CARMU-0.000484-0.238-20.600.00-0.000657-0.236-17.410.00
B_TIMEMU0.0007820.296-36.590.000.0006900.143-21.220.00
B_COSTMU7.79e-050.0332-33.320.00-0.000489-0.156-25.720.00

Smallest singular value: 0.050512