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Welcome to the users group for Biogeme. Submit your questions, comments, suggestions. Please take the time as well to respond to other users questions.
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aaditya bhamidipati
,
Bierlaire Michel
2
6/22/20
premature temination
Why did you fix the sigma's to 1? On 21 Jun 2020, at 13:20, aaditya bhamidipati <aadityabh12@
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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 Hawkins
2
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
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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 Kurtuluş
2
7/11/19
Estimation the random heterogeneity model
It appears that you defined same error component for each alternative. You should define different
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Estimation the random heterogeneity model
It appears that you defined same error component for each alternative. You should define different
7/11/19
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Sourav Kr Mandal
,
Michel Bierlaire
2
Jul 16
Large Parameters estimation in Latent Class Choice Model
> On 15 Jul 2025, at 20:39, Sourav Kr Mandal <mandals...@gmail.com> wrote: > >
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Large Parameters estimation in Latent Class Choice Model
> On 15 Jul 2025, at 20:39, Sourav Kr Mandal <mandals...@gmail.com> wrote: > >
Jul 16
n pourshian
Jul 1
Discrete Choice Model (0,1)
I have been trying to use Biogeme library to model the discrete Choice model between 2 options (
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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 Bierlaire
4
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)
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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 Bierlaire
3
Jun 14
1.8E+308 stds with loglikelihoodregression models
> On 14 Jun 2025, at 09:16, Chris ten Dam <chrisdjie...@gmail.com> wrote: > >
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1.8E+308 stds with loglikelihoodregression models
> On 14 Jun 2025, at 09:16, Chris ten Dam <chrisdjie...@gmail.com> wrote: > >
Jun 14
Ahmed Jarif
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
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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 Henry
4
May 2
Inquiry about the test file
Dear Dr Michael, Therefore, rho squared for initial model isn't reference at all , either I run
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Inquiry about the test file
Dear Dr Michael, Therefore, rho squared for initial model isn't reference at all , either I run
May 2
Lorena Torres
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
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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
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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 Bierlaire
2
Apr 28
Inquiry about Y Prediction Calculation
Accuracy percentage and confusion matrices are just nonsense. The only context where considering the
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Inquiry about Y Prediction Calculation
Accuracy percentage and confusion matrices are just nonsense. The only context where considering the
Apr 28
张铎琪
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
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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 Bierlaire
2
Apr 13
Question Regarding Ordered Probit Model Results
> On 13 Apr 2025, at 10:12, Zahra Vakili <zahrava...@gmail.com> wrote: > > Dear
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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 Bierlaire
2
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 "
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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 Bierlaire
2
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
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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 Bierlaire
3
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: > >
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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
朱铭锴
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
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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
Elisa Doldi
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 Bierlaire
3
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,
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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)
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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 Bierlaire
2
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
Hafsoah Ahmad
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 Bierlaire
4
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 Bierlaire
2
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 Bierlaire
2
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 Bierlaire
2
Feb 20
Modified Utilities Function
You should not use the mathematical expressions from the `math` package, but from the biogeme.
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Modified Utilities Function
You should not use the mathematical expressions from the `math` package, but from the biogeme.
Feb 20
可可
,
Michel Bierlaire
7
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 Bierlaire
2
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 <
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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 Bierlaire
2
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
可可
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 Bierlaire
3
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,
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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 Bierlaire
3
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