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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Jianing Liu, Bierlaire Michel3

Oct 25

Latent Class Example: Why setting B_TIME_RND[0] = 0？

Dear Professor Birelaire, Thanks so much for your detailed explanation! Best, Jianing 在2021年10月18日星期一

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Latent Class Example: Why setting B_TIME_RND[0] = 0？

Dear Professor Birelaire, Thanks so much for your detailed explanation! Best, Jianing 在2021年10月18日星期一

Oct 25

Nizam Husen, Bierlaire Michel3

Oct 24

Scale parameter

Dear Prof, Apologies for reposting this question and thanks for your suggestions about this couple of

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Scale parameter

Dear Prof, Apologies for reposting this question and thanks for your suggestions about this couple of

Oct 24

Álvaro A. Gutiérrez-Vargas, Bierlaire Michel6

Oct 22

Individual Level Parameters with more than one random parameter

You need to explicitly write equation (11.1). First, write the conditional probability as a product

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Individual Level Parameters with more than one random parameter

You need to explicitly write equation (11.1). First, write the conditional probability as a product

Oct 22

Tony Zeng, Bierlaire Michel2

Oct 21

whether the latent class model can identify individually which respondents in each class or not?

On 21 Oct 2021, at 13:27, Tony Zeng <tony.zeng.au@gmail.com> wrote: Dear Prof. Bierlaire and

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whether the latent class model can identify individually which respondents in each class or not?

On 21 Oct 2021, at 13:27, Tony Zeng <tony.zeng.au@gmail.com> wrote: Dear Prof. Bierlaire and

Oct 21

Mariska, Bierlaire Michel4

Oct 21

how to interpret significance of exp(beta) in size function of destination choice model

On 20 Oct 2021, at 10:43, Mariska <m.van.essen.90@gmail.com> wrote: Dear Michel, Thank you for

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how to interpret significance of exp(beta) in size function of destination choice model

On 20 Oct 2021, at 10:43, Mariska <m.van.essen.90@gmail.com> wrote: Dear Michel, Thank you for

Oct 21

Atefeh Fakourrad, Bierlaire Michel7

Oct 21

correlation between the errors of the two choices

On 20 Oct 2021, at 13:57, Atefeh Fakourrad <a.fakourrad@gmail.com> wrote: Dear Prof. Bierlaire,

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correlation between the errors of the two choices

On 20 Oct 2021, at 13:57, Atefeh Fakourrad <a.fakourrad@gmail.com> wrote: Dear Prof. Bierlaire,

Oct 21

Jingzhu Shan, Bierlaire Michel6

Oct 19

Ranked ordered logit model / exploded logit model

On 8 Oct 2021, at 14:14, Jingzhu Shan <jingzhushan@gmail.com> wrote: Thanks for your quick

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Ranked ordered logit model / exploded logit model

On 8 Oct 2021, at 14:14, Jingzhu Shan <jingzhushan@gmail.com> wrote: Thanks for your quick

Oct 19

Dexue kong, Bierlaire Michel2

Oct 14

The error message is clear: you are trying to take the log of a negative number. In order to discover

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The error message is clear: you are trying to take the log of a negative number. In order to discover

Oct 14

Sara Allison, Bierlaire Michel4

Oct 14

Attribute importance

On 13 Oct 2021, at 21:59, Sara Allison <sara.allison2001@gmail.com> wrote: Thanks for the reply

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Attribute importance

On 13 Oct 2021, at 21:59, Sara Allison <sara.allison2001@gmail.com> wrote: Thanks for the reply

Oct 14

daqing hu, … kongdexue kong4

Oct 14

latent cross nested model

Hello, have you solved this program? I also met the same problem with you. 在2021年1月27日星期三 UTC+8 下午4:

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latent cross nested model

Hello, have you solved this program? I also met the same problem with you. 在2021年1月27日星期三 UTC+8 下午4:

Oct 14

Oct 14

a latent nested model ?

Hi, everyone: Can we use the Biogeme package to compute "a Latent Nested Model"? If I could

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a latent nested model ?

Hi, everyone: Can we use the Biogeme package to compute "a Latent Nested Model"? If I could

Oct 14

Linfeng Gong, Bierlaire Michel3

Oct 13

include socioeconomic attributes in nested logit

Thank you professor. And yes, regarding MU, I'm referring to the online example. I was also

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include socioeconomic attributes in nested logit

Thank you professor. And yes, regarding MU, I'm referring to the online example. I was also

Oct 13

Linfeng Gong, Bierlaire Michel2

Oct 8

log nonlinear specifications

from biogeme.expressions import log On 8 Oct 2021, at 13:42, Linfeng Gong <glfkuan@gmail.com>

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log nonlinear specifications

from biogeme.expressions import log On 8 Oct 2021, at 13:42, Linfeng Gong <glfkuan@gmail.com>

Oct 8

Sara Allison, Bierlaire Michel4

Oct 8

Variance-covariance matrix

The standard error and the covariance can already be found in the html file. Now, if you need them

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Variance-covariance matrix

The standard error and the covariance can already be found in the html file. Now, if you need them

Oct 8

Atefeh Fakourrad, Bierlaire Michel8

Oct 7

Cluster-robust standard error

It is not clear what you want to do. It is not a parameter of the model. There is no such thing as a

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Cluster-robust standard error

It is not clear what you want to do. It is not a parameter of the model. There is no such thing as a

Oct 7

Bierlaire Michel

Oct 6

Ben-Akiva, Bierlaire: Online Course on Discrete Choice Models, EPFL, Lausanne

Dear all, Next March, we are organizing at EPFL the course on discrete choice models to predict

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Ben-Akiva, Bierlaire: Online Course on Discrete Choice Models, EPFL, Lausanne

Dear all, Next March, we are organizing at EPFL the course on discrete choice models to predict

Oct 6

Saha, … Bierlaire Michel6

Oct 6

Hybrid choice model and log-likelihood

On 5 Oct 2021, at 13:36, Atefeh Fakourrad <a.fakourrad@gmail.com> wrote: Thanks, Prof.

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Hybrid choice model and log-likelihood

On 5 Oct 2021, at 13:36, Atefeh Fakourrad <a.fakourrad@gmail.com> wrote: Thanks, Prof.

Oct 6

1049677382, Bierlaire Michel2

Oct 2

Monte-Carlo integration in ICLV models

On 2 Oct 2021, at 05:50, '1049677382' via Biogeme <biogeme@googlegroups.com> wrote:

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Monte-Carlo integration in ICLV models

On 2 Oct 2021, at 05:50, '1049677382' via Biogeme <biogeme@googlegroups.com> wrote:

Oct 2

Zeyu Sun, Bierlaire Michel4

Sep 29

error: norm of the gradient is inf

The ratio mu / mum must indeed be between 0 and 1. mu is normalized to one. Therefore, the nest

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error: norm of the gradient is inf

The ratio mu / mum must indeed be between 0 and 1. mu is normalized to one. Therefore, the nest

Sep 29

Bierlaire Michel

Sep 28

Re: [biogeme] Final rho square 01logit.html

You can find both the rho square and the rho-bar square in the report http://biogeme.epfl.ch/examples

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Re: [biogeme] Final rho square 01logit.html

You can find both the rho square and the rho-bar square in the report http://biogeme.epfl.ch/examples

Sep 28

ros.dev...@gmail.com2

Sep 28

Final rho square

Hello everyone, I wanted to run the example https://biogeme.epfl.ch/examples/swissmetro/01logit.py,

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Final rho square

Hello everyone, I wanted to run the example https://biogeme.epfl.ch/examples/swissmetro/01logit.py,

Sep 28

yufei xu, Bierlaire Michel2

Sep 27

How to indicate some alternatives belong to one group

I don't understand the question. Sampling of alternatives is a pre-processing. You need to

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How to indicate some alternatives belong to one group

I don't understand the question. Sampling of alternatives is a pre-processing. You need to

Sep 27

krishna bhattarai, … Bierlaire Michel4

Sep 27

Fwd: FW: Respected professor, I am facing a problem of getting very high values of parameters, I also ran the model several times with carrying sigma values. For less no of draws e. g 50 draws its okay, but as I ran for 500 draws I got this issues. Can ...

Thank you so much professor and team. Get Outlook for Android From: 'Bierlaire Michel' via

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Fwd: FW: Respected professor, I am facing a problem of getting very high values of parameters, I also ran the model several times with carrying sigma values. For less no of draws e. g 50 draws its okay, but as I ran for 500 draws I got this issues. Can ...

Thank you so much professor and team. Get Outlook for Android From: 'Bierlaire Michel' via

Sep 27

Sep 27

Too large coefficient in a hybrid choice model with latent variables

Dear Professor Michel and everyone, I am running a hybrid choice model with some latent variables.

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Too large coefficient in a hybrid choice model with latent variables

Dear Professor Michel and everyone, I am running a hybrid choice model with some latent variables.

Sep 27

Atefeh Fakourrad, Bierlaire Michel2

Sep 25

initial loglikelihhod

The initial likelihood is the likelihood for the initial values of the parameters. If you run several

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initial loglikelihhod

The initial likelihood is the likelihood for the initial values of the parameters. If you run several

Sep 25

yufei xu, Bierlaire Michel2

Sep 22

Include a log function in the utility function

Yes. Just import the “log” function from “biogeme.expressions” module. from biogeme.expressions

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Include a log function in the utility function

Yes. Just import the “log” function from “biogeme.expressions” module. from biogeme.expressions

Sep 22

jullianv...@gmail.com, Bierlaire Michel2

Sep 20

pandasbiogeme supercomputer question

It works on multithreading. I am using it all the time on a large cluster. If you don't provide

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pandasbiogeme supercomputer question

It works on multithreading. I am using it all the time on a large cluster. If you don't provide

Sep 20

Atefeh Fakourrad, … Bierlaire Michel6

Sep 20

Did you try sequential estimation first, as explained in the document? You probably need to normalize

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Did you try sequential estimation first, as explained in the document? You probably need to normalize

Sep 20

ronnymar...@gmail.com, Bierlaire Michel2

Sep 16

Latent class model with repeated dataset

Yes. The specification of LCCM is described here: http://transp-or.epfl.ch/documents/technicalReports

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Latent class model with repeated dataset

Yes. The specification of LCCM is described here: http://transp-or.epfl.ch/documents/technicalReports

Sep 16

Zheren Liu, Bierlaire Michel3

Sep 16

Implement the Route Choice Model with Biogeme

Thanks for your reply, Professer! I think I finally understand what 'unlabeled alternative'

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Implement the Route Choice Model with Biogeme

Thanks for your reply, Professer! I think I finally understand what 'unlabeled alternative'

Sep 16

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