Socio economic classes for latent class model

[Marie Duper]

Hi

I have a latent class model working for two classes. It includes socio economic factors. I was wondering: 

How do I include eg 3 classes I am going wrong here

PROB_class0 = logit({0:W, 1:0, 2:0}, None, 0)

PROB_class1 = logit({0:W, 1:0, 2:0}, None, 1)

PROB_class2 = logit({0:W, 1:0, 2:0} None, 2)

Also how do I interpret the outputs.

B_ACS2_class0 0.024175 0.034319 0.704431 B_ACS2_class1 0.100686 0.042256 2.382772 B_SIGMA_PANEL_ASC2_class0 0.426621 0.050057 8.522618 B_SIGMA_PANEL_ASC2_class1 -0.000011 0.229234 -0.000046 B_color_class1 0.006670 0.059599 0.111909 B_day_class1 -0.116566 0.074876 -1.556799 B_size_class1 -0.506037 0.078516 -6.444996 CLASS_1 5.043362 1.217259 4.143212 CLASS_Age 0.077050 0.069373 1.110657 CLASS_Child -0.333996 0.175420 -1.903980 CLASS_Education -0.056215 0.040115 -1.401339 CLASS_Gender 0.206911 0.156089 1.325599  

I understand the beta coefficients (relative to class 0) but not the socio economic ones. 

what are these relative to?

Thank you 

M

[Michel Bierlaire]

You need a W for class 0 and another one for class 1, with different coefficients.

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Michel Bierlaire
Transport and Mobility Laboratory
School of Architecture, Civil and Environmental Engineering
EPFL - Ecole Polytechnique Fédérale de Lausanne
http://transp-or.epfl.ch
http://people.epfl.ch/michel.bierlaire