Latent class model with weighted data

[Jingzhu Shan]

Professor, can we do a latent class model with weighted data using Biogeme? If so, how can we do that? Thanks!

Jingzhu

[Bierlaire Michel]

On 25 Jun 2022, at 10:53, Jingzhu Shan <jingz...@gmail.com> wrote:

Professor, can we do a latent class model with weighted data using Biogeme?

Yes.

If so, how can we do that?

Just define the weights, as in this example: http://biogeme.epfl.ch/examples/swissmetro/02weight.py

Thanks!

Jingzhu

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[Jingzhu Shan]

Thanks professor! But I've tried to add weight in the latent class. It keeps remind me of error :" Biogeme exception: Null pointer: No data has been provided to the formula to obtain a value for variable COASTAL". The error massage did not appear when weight is not introduced into the model. I can not figure out why this situation happens. Could you please if there is anything wrong with my syntax? Thanks!