Biogeme

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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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Ricardo Lu, Michel Bierlaire5

Apr 10

OptimizationError by running Assisted Specification

You need to identify which model causes the problem, and investigate the issue. This is a numerical

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OptimizationError by running Assisted Specification

You need to identify which model causes the problem, and investigate the issue. This is a numerical

Apr 10

Yuan Wang, Michel Bierlaire3

Apr 9

Error while conducting a MonteCarlo integration estimation

The error is self-explanatory: > The following random variables are defined outside the Integrate

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Error while conducting a MonteCarlo integration estimation

The error is self-explanatory: > The following random variables are defined outside the Integrate

Apr 9

chao chen, … Michel Bierlaire3

Apr 8

Why the running time of the biogeme code bocame so so so slow, especially for using Monte-Carlo

> On 8 Apr 2024, at 10:23, chao chen <chenc...@gmail.com> wrote: > > Two years ago,

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Why the running time of the biogeme code bocame so so so slow, especially for using Monte-Carlo

> On 8 Apr 2024, at 10:23, chao chen <chenc...@gmail.com> wrote: > > Two years ago,

Apr 8

Kesewa Opoku Agyemang, Michel Bierlaire2

Apr 3

Increasing maximum iteration

> On 3 Apr 2024, at 08:05, Kesewa Opoku Agyemang <opoku...@gmail.com> wrote: > >

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Increasing maximum iteration

> On 3 Apr 2024, at 08:05, Kesewa Opoku Agyemang <opoku...@gmail.com> wrote: > >

Apr 3

Anderson silva dos santos, Michel Bierlaire4

Apr 1

Assistance Needed: Divergent Results in Biogeme Model Estimation

Thank you Prof Bierlaire, It was a problem with the dataset. Now it looks ok! And yes, the distance

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Assistance Needed: Divergent Results in Biogeme Model Estimation

Thank you Prof Bierlaire, It was a problem with the dataset. Now it looks ok! And yes, the distance

Apr 1

Shahrdad Esmaeili, Michel Bierlaire2

Apr 1

ranked alternatives

Yes, but you have to prepare your data first. If an individual ranks alternatives as 5, 2, 3, 1, 4,

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ranked alternatives

Yes, but you have to prepare your data first. If an individual ranks alternatives as 5, 2, 3, 1, 4,

Apr 1

Benoit L., Michel Bierlaire2

Mar 27

Convergence clarifications and panel data with ICVL

> On 25 Mar 2024, at 17:04, Benoit L. <ben...@gmail.com> wrote: > > Dear Biogeme

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Convergence clarifications and panel data with ICVL

> On 25 Mar 2024, at 17:04, Benoit L. <ben...@gmail.com> wrote: > > Dear Biogeme

Mar 27

Suppharutchaya Chongutsah, Michel Bierlaire4

Mar 27

Seeking Advice on Improving Logit Model Performance

> On 22 Mar 2024, at 17:43, Suppharutchaya Chongutsah <s.chon...@gmail.com> wrote: >

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Seeking Advice on Improving Logit Model Performance

> On 22 Mar 2024, at 17:43, Suppharutchaya Chongutsah <s.chon...@gmail.com> wrote: >

Mar 27

Mar 22

biogeme.exceptions.BiogemeError in MNL model

Hi professor, While running the codes I encountered a problem and I still do not know how to solve it

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biogeme.exceptions.BiogemeError in MNL model

Hi professor, While running the codes I encountered a problem and I still do not know how to solve it

Mar 22

Suppharutchaya Chongutsah, Michel Bierlaire2

Mar 21

Hybrid Choice Model (ICLV) Integration with Biogeme

It is described in this document as https://transp-or.epfl.ch/documents/technicalReports/Bier18b.pdf

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Hybrid Choice Model (ICLV) Integration with Biogeme

It is described in this document as https://transp-or.epfl.ch/documents/technicalReports/Bier18b.pdf

Mar 21

Annesha Enam, … Michel Bierlaire5

Mar 18

Saving biodraws

There are several examples under "Programming with Biogeme" https://biogeme.epfl.ch/sphinx/

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Saving biodraws

There are several examples under "Programming with Biogeme" https://biogeme.epfl.ch/sphinx/

Mar 18

Amin As, Michel Bierlaire4

Mar 18

Nested Logit Model for Mode and Departure time Choice

The parameters are defined in the file biogeme.toml, in the section [SimpleBounds] second_derivatives

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Nested Logit Model for Mode and Departure time Choice

The parameters are defined in the file biogeme.toml, in the section [SimpleBounds] second_derivatives

Mar 18

Amin Afshari, antare...@gmail.com2

Mar 11

warning in the estimation of measurement equations in a hybrid model

Hi Amin, That message indicates that you have defined more coefficients than needed, so it is

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warning in the estimation of measurement equations in a hybrid model

Hi Amin, That message indicates that you have defined more coefficients than needed, so it is

Mar 11

Mar 8

simulating ordered logit model

Dear Professor, I estimated an ordered logit model and obtained the respective tau parameters. I now

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simulating ordered logit model

Dear Professor, I estimated an ordered logit model and obtained the respective tau parameters. I now

Mar 8

Md Shakatul Islam, Michel Bierlaire2

Mar 8

error in the utility function

It seems that Short_pt_tc is a numpy array and not a Biogeme expression... > On 6 Mar 2024, at 19:

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error in the utility function

It seems that Short_pt_tc is a numpy array and not a Biogeme expression... > On 6 Mar 2024, at 19:

Mar 8

Xinyu Wang, Michel Bierlaire3

Mar 2

No module named 'read_or_estimate'

Just copy it in the same directory. It is called by the script. > On 2 Mar 2024, at 11:27,

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No module named 'read_or_estimate'

Just copy it in the same directory. It is called by the script. > On 2 Mar 2024, at 11:27,

Mar 2

Ricardo Lu, Michel Bierlaire2

Feb 29

Maximum number of iterations in assisted specification

It can be changed in the file biogeme.toml, section [SimpleBounds]: [SimpleBounds] max_iterations =

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Maximum number of iterations in assisted specification

It can be changed in the file biogeme.toml, section [SimpleBounds]: [SimpleBounds] max_iterations =

Feb 29

Mahdi Samadzad, Michel Bierlaire2

Feb 29

Multiple Indicators Solution

The use of multiple indicators in general with Biogeme is illustrated in the context of latent

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Multiple Indicators Solution

The use of multiple indicators in general with Biogeme is illustrated in the context of latent

Feb 29

Noah Wölki, Michel Bierlaire2

Feb 24

Latent Class modeling

> On 23 Feb 2024, at 23:27, Noah Wölki <noah....@gmail.com> wrote: > > Dear

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Latent Class modeling

> On 23 Feb 2024, at 23:27, Noah Wölki <noah....@gmail.com> wrote: > > Dear

Feb 24

rossol...@gmail.com, Michel Bierlaire2

Feb 23

Simulation for panel data

> On 23 Feb 2024, at 12:50, rossol...@gmail.com <rossol...@gmail.com> wrote: > >

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Simulation for panel data

> On 23 Feb 2024, at 12:50, rossol...@gmail.com <rossol...@gmail.com> wrote: > >

Feb 23

Uma Parasuram, Michel Bierlaire6

Feb 23

Estimating a conditional logit model in biogeme

Hi Professor, Thank you for your feedback. I ran the latent class model to get the individual class

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Estimating a conditional logit model in biogeme

Hi Professor, Thank you for your feedback. I ran the latent class model to get the individual class

Feb 23

Agatha Clarice da Silva Ovando, Michel Bierlaire2

Feb 22

DefineVariable error

Since version 3.2.10, the DefineVariable is associated with the Database module, not the expressions

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DefineVariable error

Since version 3.2.10, the DefineVariable is associated with the Database module, not the expressions

Feb 22

Arvind Ilamaran

Feb 22

Re: Potential collaboration - DCE in criminology

Hello all, Firstly apologies for using this group for a non-Biogeme query. I am a Research Scientist

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Re: Potential collaboration - DCE in criminology

Hello all, Firstly apologies for using this group for a non-Biogeme query. I am a Research Scientist

Feb 22

Ahmadali Hajilari, … raj prajapati3

Feb 21

sigma_s estimation

Hello sir, Can you share the code? It is really helpful to me. On Tuesday 20 February 2024 at 23:24:

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sigma_s estimation

Hello sir, Can you share the code? It is really helpful to me. On Tuesday 20 February 2024 at 23:24:

Feb 21

Feb 20

It seems that the optimization algorithm did not converge..

An error appeared three times during the running. Here are the codes(2 non-linear specifications and

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It seems that the optimization algorithm did not converge..

An error appeared three times during the running. Here are the codes(2 non-linear specifications and

Feb 20

Rongqiu Song, Michel Bierlaire2

Feb 20

Long running time and strange results of mixed logit model

100 draws are definitely not enough to obtain meaningful results. You use only a low number of draws

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Long running time and strange results of mixed logit model

100 draws are definitely not enough to obtain meaningful results. You use only a low number of draws

Feb 20

Feb 20

Estimating Random individual effects in biogeme

Hi Professor and the Biogeme Forum, I have a panel data set with multiple entries per respondent - it

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Estimating Random individual effects in biogeme

Hi Professor and the Biogeme Forum, I have a panel data set with multiple entries per respondent - it

Feb 20

Sourav Kr Mandal, Michel Bierlaire2

Feb 18

Latent Clas Analysis

Yes, you can estimate models with latent classes with Biogeme. There is a collection of introductory

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Latent Clas Analysis

Yes, you can estimate models with latent classes with Biogeme. There is a collection of introductory

Feb 18

MirtheN, … Michael Nassar3

Feb 11

Unequal sampling over blocks

Michael Nassar 3...@gmail.com On Sun, Feb 11, 2024, 9:18 AM 'Michel Bierlaire' via Biogeme <

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Unequal sampling over blocks

Michael Nassar 3...@gmail.com On Sun, Feb 11, 2024, 9:18 AM 'Michel Bierlaire' via Biogeme <

Feb 11

goutham takasi, Michel Bierlaire2

Feb 4

Standard error and t-statistic calculations of estimated parameters in MDCEV model estimation

If you estimate them with maximum likelihood, it is exactly the same as for any other model. > On

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Standard error and t-statistic calculations of estimated parameters in MDCEV model estimation

If you estimate them with maximum likelihood, it is exactly the same as for any other model. > On

Feb 4

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