Groups

Biogeme

Contact owners and managers

1–30 of 1216

Welcome to the users group for Biogeme. Submit your questions, comments, suggestions. Please take the time as well to respond to other users questions.

0 selected

aaditya bhamidipati, Bierlaire Michel2

6/22/20

premature temination

Why did you fix the sigma's to 1? On 21 Jun 2020, at 13:20, aaditya bhamidipati <aadityabh12@

unread,

premature temination

Why did you fix the sigma's to 1? On 21 Jun 2020, at 13:20, aaditya bhamidipati <aadityabh12@

6/22/20

zh.kev...@gmail.com, Jason Hawkins2

3/9/20

Choice model based on revealed preference is under certainty, risk or uncertainty

Hi Kevin, You are correct that the error term generally refers to uncertainty on the part of the

unread,

Choice model based on revealed preference is under certainty, risk or uncertainty

Hi Kevin, You are correct that the error term generally refers to uncertainty on the part of the

3/9/20

Valeriy, Ercan Kurtuluş2

7/11/19

Estimation the random heterogeneity model

It appears that you defined same error component for each alternative. You should define different

unread,

Estimation the random heterogeneity model

It appears that you defined same error component for each alternative. You should define different

7/11/19

View more pinned conversations

Sourav Kr Mandal, Michel Bierlaire2

Jul 16

Large Parameters estimation in Latent Class Choice Model

> On 15 Jul 2025, at 20:39, Sourav Kr Mandal <mandals...@gmail.com> wrote: > >

unread,

Large Parameters estimation in Latent Class Choice Model

> On 15 Jul 2025, at 20:39, Sourav Kr Mandal <mandals...@gmail.com> wrote: > >

Jul 16

Jul 1

Discrete Choice Model (0,1)

I have been trying to use Biogeme library to model the discrete Choice model between 2 options (

unread,

Discrete Choice Model (0,1)

I have been trying to use Biogeme library to model the discrete Choice model between 2 options (

Jul 1

Natchaphon Leungbootnak, Michel Bierlaire4

Jun 28

Calculation of Class Membership in Latent Class Logit Model

If you want to guess the class from the data (that is, both the independent variables and the choice)

unread,

Calculation of Class Membership in Latent Class Logit Model

If you want to guess the class from the data (that is, both the independent variables and the choice)

Jun 28

Chris ten Dam, Michel Bierlaire3

Jun 14

1.8E+308 stds with loglikelihoodregression models

> On 14 Jun 2025, at 09:16, Chris ten Dam <chrisdjie...@gmail.com> wrote: > >

unread,

1.8E+308 stds with loglikelihoodregression models

> On 14 Jun 2025, at 09:16, Chris ten Dam <chrisdjie...@gmail.com> wrote: > >

Jun 14

May 20

Ordered Logit Model with Panel Data in BIOGEME

Dear Prof. Bierlaire and BIOGEME community, I am a M.Sc. Engg. student. I've designed a stated

unread,

Ordered Logit Model with Panel Data in BIOGEME

Dear Prof. Bierlaire and BIOGEME community, I am a M.Sc. Engg. student. I've designed a stated

May 20

Osama Hassan, … Tito Henry4

May 2

Inquiry about the test file

Dear Dr Michael, Therefore, rho squared for initial model isn't reference at all , either I run

unread,

Inquiry about the test file

Dear Dr Michael, Therefore, rho squared for initial model isn't reference at all , either I run

May 2

May 1

Latent variable and panel data

Hello, I am doing a model with a latent variable with an error component normally distributed and I

unread,

Latent variable and panel data

Hello, I am doing a model with a latent variable with an error component normally distributed and I

May 1

ענבל גליקמן

May 1

Issue with HCM Combining Latent variable and Panel effect

Dear Prof. Berlier, I need your assistance with an issue I am encountering while estimating a HCM

unread,

Issue with HCM Combining Latent variable and Panel effect

Dear Prof. Berlier, I need your assistance with an issue I am encountering while estimating a HCM

May 1

Natchaphon Leungbootnak, Michel Bierlaire2

Apr 28

Inquiry about Y Prediction Calculation

Accuracy percentage and confusion matrices are just nonsense. The only context where considering the

unread,

Inquiry about Y Prediction Calculation

Accuracy percentage and confusion matrices are just nonsense. The only context where considering the

Apr 28

Apr 24

How to properly model and identify panel effect in Biogeme?

Dear all, I'm currently working with panel data in Biogeme and trying to understand how to

unread,

How to properly model and identify panel effect in Biogeme?

Dear all, I'm currently working with panel data in Biogeme and trying to understand how to

Apr 24

Zahra Vakili, Michel Bierlaire2

Apr 13

Question Regarding Ordered Probit Model Results

> On 13 Apr 2025, at 10:12, Zahra Vakili <zahrava...@gmail.com> wrote: > > Dear

unread,

Question Regarding Ordered Probit Model Results

> On 13 Apr 2025, at 10:12, Zahra Vakili <zahrava...@gmail.com> wrote: > > Dear

Apr 13

Natchaphon Leungbootnak, Michel Bierlaire2

Apr 8

RUM vs RRM in biogeme: Is it possible Final LL, AIC, BIC, and confusion matrix are exactly the same?

You've made a mistake. You have estimated twice the exact same model. Also, the concept of "

unread,

RUM vs RRM in biogeme: Is it possible Final LL, AIC, BIC, and confusion matrix are exactly the same?

You've made a mistake. You have estimated twice the exact same model. Also, the concept of "

Apr 8

Natchaphon Leungbootnak, Michel Bierlaire2

Apr 8

The Norm of Gradient Issue in Mixed Logit Model with Panel Data

Try asc_ML_s = Beta('asc_ML_s', 10, -100, 100, 0) Also, estimate first a model ignoring the

unread,

The Norm of Gradient Issue in Mixed Logit Model with Panel Data

Try asc_ML_s = Beta('asc_ML_s', 10, -100, 100, 0) Also, estimate first a model ignoring the

Apr 8

John Abraham, Michel Bierlaire3

Apr 8

Hello and a question about a parameter inside a log.

Hi John, > On 1 Apr 2025, at 23:06, John Abraham <j...@hbaspecto.com> wrote: > >

unread,

Hello and a question about a parameter inside a log.

Hi John, > On 1 Apr 2025, at 23:06, John Abraham <j...@hbaspecto.com> wrote: > >

Apr 8

Apr 1

Unexpected Results in Logit Model with Repeated Choices in Biogeme

Dear all: I'm currently building a logit model in Biogeme. In my setup, each respondent makes a

unread,

Unexpected Results in Logit Model with Repeated Choices in Biogeme

Dear all: I'm currently building a logit model in Biogeme. In my setup, each respondent makes a

Apr 1

Mar 31

RuntimeError: Value 0 out of range – Even in minimal working model

Hello Biogeme team, I'm encountering a persistent RuntimeError when estimating even a minimal

unread,

RuntimeError: Value 0 out of range – Even in minimal working model

Hello Biogeme team, I'm encountering a persistent RuntimeError when estimating even a minimal

Mar 31

Natchaphon Leungbootnak, Michel Bierlaire3

Mar 25

Panel data: Simulate prediction results at the observation level instead of individual level

For my understanding, when I run the code, I have to set up the df_train as the panel data. However,

unread,

Panel data: Simulate prediction results at the observation level instead of individual level

For my understanding, when I run the code, I have to set up the df_train as the panel data. However,

Mar 25

Natchaphon Leungbootnak

Mar 23

Panel data: How to simulate prediction results at the observation level instead of individual levelof

Dear Professor Bierlaire, I have a panel dataset that contains 'randid' (individual traveler)

unread,

Panel data: How to simulate prediction results at the observation level instead of individual levelof

Dear Professor Bierlaire, I have a panel dataset that contains 'randid' (individual traveler)

Mar 23

Muhammad Kalifardi, Michel Bierlaire2

Mar 17

Error in Installation

It seems that you have a package that request an old version of numpy. The best solution is to create

unread,

Error in Installation

It seems that you have a package that request an old version of numpy. The best solution is to create

Mar 17

Mar 12

Simulation for an ordered hybrid choice model

Dear Professor Bierlaire, I am trying to simulate a hybrid choice model with a single ordered choice

unread,

Simulation for an ordered hybrid choice model

Dear Professor Bierlaire, I am trying to simulate a hybrid choice model with a single ordered choice

Mar 12

ענבל גליקמן, Michel Bierlaire4

Mar 11

Incorporating a Latent Variable in an MNL Model

: :I tried using the method from the explanation file you sent me, and I formulated the model as

unread,

Incorporating a Latent Variable in an MNL Model

: :I tried using the method from the explanation file you sent me, and I formulated the model as

Mar 11

Mike Sri, Michel Bierlaire2

Mar 3

Ordered logit predicted value used as 2SLS

Yes, it is possible. The syntax would be similar to the one used for hydrid choice models. Have a

unread,

Ordered logit predicted value used as 2SLS

Yes, it is possible. The syntax would be similar to the one used for hydrid choice models. Have a

Mar 3

Lotte Notelaers, Michel Bierlaire2

Feb 25

MNL model using panel data and weights

> On 24 Feb 2025, at 16:43, Lotte Notelaers <lo...@wearenutz.com> wrote: > > Dear prof

unread,

MNL model using panel data and weights

> On 24 Feb 2025, at 16:43, Lotte Notelaers <lo...@wearenutz.com> wrote: > > Dear prof

Feb 25

Natchaphon Leungbootnak, Michel Bierlaire2

Feb 20

Modified Utilities Function

You should not use the mathematical expressions from the `math` package, but from the biogeme.

unread,

Modified Utilities Function

You should not use the mathematical expressions from the `math` package, but from the biogeme.

Feb 20

可可, Michel Bierlaire7

Feb 12

Integrate() to deal 2-dimension integration

Thank you for your reply！ So if we rewrite the mathematical formula in this form, will it correspond

unread,

Integrate() to deal 2-dimension integration

Thank you for your reply！ So if we rewrite the mathematical formula in this form, will it correspond

Feb 12

Saptarshi Sen, Michel Bierlaire2

Feb 11

Draws are defined outside the MonteCarlo operator

You forgot to integrate. MonteCarlo(elas_Bus_time) > On 11 Feb 2025, at 13:12, Saptarshi Sen <

unread,

Draws are defined outside the MonteCarlo operator

You forgot to integrate. MonteCarlo(elas_Bus_time) > On 11 Feb 2025, at 13:12, Saptarshi Sen <

Feb 11

Dali Hajilari, Michel Bierlaire2

Feb 9

Identification issue

My guess is that you are trying to estimate both the constant and the thresholds. One of them must be

unread,

Identification issue

My guess is that you are trying to estimate both the constant and the thresholds. One of them must be

Feb 9

Feb 7

Numerical integration and Monte-Carlo integration to deal 2-dimension problem

Dear Biogeme-group, I set two latent variables, CC and AA, when I calibrated the ICLV model. Can I

unread,

Numerical integration and Monte-Carlo integration to deal 2-dimension problem

Dear Biogeme-group, I set two latent variables, CC and AA, when I calibrated the ICLV model. Can I

Feb 7

R Morales, Michel Bierlaire3

Jan 28

NL Combining RP & SP data

The best way to think about it is to start by developing first a model for RP data, and,

unread,

NL Combining RP & SP data

The best way to think about it is to start by developing first a model for RP data, and,

Jan 28

Rachel Murray-Watson, Michel Bierlaire3

Jan 27

Socio-economic factors in choice models with latent variables

No. But a large number of classes (that is, 3 or more) generate a likelihood function with many local

unread,

Socio-economic factors in choice models with latent variables

No. But a large number of classes (that is, 3 or more) generate a likelihood function with many local

Jan 27

Search

Clear search

Close search

Google apps

Main menu