Biogeme

1–30 of 1023

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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Lorenzo Muñoz, Bierlaire Michel2

May 26

Elasticities and Value of Time

Elasticities are not restricted to be between 0 and 1. See Section 3 of this report for details:

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Elasticities and Value of Time

Elasticities are not restricted to be between 0 and 1. See Section 3 of this report for details:

May 26

Tyas Eka Oktavia, Bierlaire Michel2

May 23

This error message comes from Python, not Biogeme. I believe that you have written “Lain-lain”

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This error message comes from Python, not Biogeme. I believe that you have written “Lain-lain”

May 23

Swalha Salim, Bierlaire Michel4

May 22

This video may be relevant. https://youtu.be/GmNodW_pUHk > On 22 May 2023, at 09:52, maliha089@

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This video may be relevant. https://youtu.be/GmNodW_pUHk > On 22 May 2023, at 09:52, maliha089@

May 22

Giulia Oeschger, Bierlaire Michel2

May 22

Using responses to choice games as variables in the model

You cannot use the dependent variable (that is, the choice) as explanatory variable. > On 22 May

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Using responses to choice games as variables in the model

You cannot use the dependent variable (that is, the choice) as explanatory variable. > On 22 May

May 22

Adrian Molescu, Bierlaire Michel2

May 21

Log-likelihood magnitud with panel data

If the data is declared panel, one observation corresponds to the trajectory one individual. If the

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Log-likelihood magnitud with panel data

If the data is declared panel, one observation corresponds to the trajectory one individual. If the

May 21

Mahdi Samadzad, Bierlaire Michel2

May 21

Similarities among scenarios due to the respondent

If you want to deal with serial correlation, you need to declare the SP data as panel. See https://

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Similarities among scenarios due to the respondent

If you want to deal with serial correlation, you need to declare the SP data as panel. See https://

May 21

sara gharavi, Michel Bierlaire2

May 17

import biogeme.biogeme as bio / cythonbiogeme.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNSt15__exception_ptr13exception_ptr10_M_releaseEv

Do you use conda? This issue is documented on the internet. If you Google it, you'll find several

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import biogeme.biogeme as bio / cythonbiogeme.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNSt15__exception_ptr13exception_ptr10_M_releaseEv

Do you use conda? This issue is documented on the internet. If you Google it, you'll find several

May 17

May 14

ESTIMATING MODE INVARIANT ATTRIBUTES

Hello, I have two questions. 1. In my estimation some of the coefficients are not statistically

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ESTIMATING MODE INVARIANT ATTRIBUTES

Hello, I have two questions. 1. In my estimation some of the coefficients are not statistically

May 14

May 14

WRONG SIGN OF COEFFICIENT

Dear Professor and the rest of the community, I got the following results, one of the variables has

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WRONG SIGN OF COEFFICIENT

Dear Professor and the rest of the community, I got the following results, one of the variables has

May 14

Atefeh Fakourrad, … Mat Guy8

May 11

Total number of possible specifications: None

Dear Prof. Bierlare, Ok, thank you! It works now. Best regards, M. Guyon Le jeudi 11 mai 2023 à 09:32

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Total number of possible specifications: None

Dear Prof. Bierlare, Ok, thank you! It works now. Best regards, M. Guyon Le jeudi 11 mai 2023 à 09:32

May 11

Sophie JO, Bierlaire Michel2

May 11

Error message when installing biogeme via homebrew on mac

The version of Biogeme distributed with homebrew is outdated and not available anymore. Biogeme is

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Error message when installing biogeme via homebrew on mac

The version of Biogeme distributed with homebrew is outdated and not available anymore. Biogeme is

May 11

Newsha Bagheri, Bierlaire Michel4

May 10

Inconsistent results while using Biogeme

A latent variable model without any indicator is just a mixture model. And the parameters are not

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Inconsistent results while using Biogeme

A latent variable model without any indicator is just a mixture model. And the parameters are not

May 10

SARAH BAKHROURI

May 9

Dear Sir, I am Sarah, Ph.D Student from Algeria. Currently, I am trying to modelling the mode choice

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Dear Sir, I am Sarah, Ph.D Student from Algeria. Currently, I am trying to modelling the mode choice

May 9

Bierlaire Michel, azis hakim5

May 9

Re: [biogeme] Type of cause termination

It means that ASC_CS is completely confounded with B > On 9 May 2023, at 05:29, azis.hakim@gmail.

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Re: [biogeme] Type of cause termination

It means that ASC_CS is completely confounded with B > On 9 May 2023, at 05:29, azis.hakim@gmail.

May 9

xznn...@gmail.com, Bierlaire Michel2

May 8

Compare choice model attributes

The coefficients cannot be directly compared. But the ratio of coefficients can. Or the elasticities.

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Compare choice model attributes

The coefficients cannot be directly compared. But the ratio of coefficients can. Or the elasticities.

May 8

Anna Beatriz Grigolon, Mohammad Mehdi Oshanreh2

Apr 27

Question about model specification for unlabeled experiment

You have to create a dictionary for availability not just an integer value. On Monday, March 20, 2023

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Question about model specification for unlabeled experiment

You have to create a dictionary for availability not just an integer value. On Monday, March 20, 2023

Apr 27

Suvam Banerjee, Bierlaire Michel3

Apr 26

LCCM with 3 classes

> On 26 Apr 2023, at 15:12, suvam...@gmail.com wrote: > > Thank you Prof. for the

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LCCM with 3 classes

> On 26 Apr 2023, at 15:12, suvam...@gmail.com wrote: > > Thank you Prof. for the

Apr 26

Afia Ibnat Subah

Apr 26

Rho Square Value

Hello Professor! I wanted to know about the Rho Squared values showed in the HTML file after running

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Rho Square Value

Hello Professor! I wanted to know about the Rho Squared values showed in the HTML file after running

Apr 26

Afia Ibnat Subah, Bierlaire Michel4

Apr 26

Rho Square and Adjusted Rho Square

Both are reported in the html file. What you call the “adjusted” rho square is labeled the "Rho-

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Rho Square and Adjusted Rho Square

Both are reported in the html file. What you call the “adjusted” rho square is labeled the "Rho-

Apr 26

Apr 24

Choice set modeling

Dear All, Can anyone point me to available sample code for choice set models? Particularly the

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Choice set modeling

Dear All, Can anyone point me to available sample code for choice set models? Particularly the

Apr 24

Eva Lin, … Bierlaire Michel3

Apr 23

ICLV panel data：NameError: name 'condlike' is not defined

Sorry. It seems that I have missed this message. My responses below. > On 8 Mar 2023, at 17:44,

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ICLV panel data：NameError: name 'condlike' is not defined

Sorry. It seems that I have missed this message. My responses below. > On 8 Mar 2023, at 17:44,

Apr 23

oz zalel, … Mat Guy21

Apr 21

ImportError: DLL load failed while importing cythonbiogeme: The specified module could not be found.

Yes, it works! Thank you! Best regards, MG PS: Using Python v3.9.7 with Biogeme 3.2.10 also works,

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ImportError: DLL load failed while importing cythonbiogeme: The specified module could not be found.

Yes, it works! Thank you! Best regards, MG PS: Using Python v3.9.7 with Biogeme 3.2.10 also works,

Apr 21

Michel Bierlaire

Apr 21

Dear all, A new version of Biogeme is now available. In principle, the command pip install biogeme --

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Dear all, A new version of Biogeme is now available. In principle, the command pip install biogeme --

Apr 21

Apr 20

NL combining RP&SP

Dear Michel, Could you please direct me towards a NL model example estimated with several data sets (

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NL combining RP&SP

Dear Michel, Could you please direct me towards a NL model example estimated with several data sets (

Apr 20

Patrickk, Bierlaire Michel2

Apr 11

Missing something in the results HTML

In order to simplify the output, the Rao-Cramer statistics are not included anymore, by default. If

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Missing something in the results HTML

In order to simplify the output, the Rao-Cramer statistics are not included anymore, by default. If

Apr 11

Arvind Ilamaran, Bierlaire Michel2

Apr 11

Three step estimation (Vermunt, 2010)

Have a look at this document https://transp-or.epfl.ch/documents/technicalReports/Bier18b.pdf > On

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Three step estimation (Vermunt, 2010)

Have a look at this document https://transp-or.epfl.ch/documents/technicalReports/Bier18b.pdf > On

Apr 11

Mwendwa Kiko, Bierlaire Michel2

Apr 11

Meaning of mu parameter in nested logit

By default, it is normalized from the top. Therefore, the nest parameter must be larger than 1. >

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Meaning of mu parameter in nested logit

By default, it is normalized from the top. Therefore, the nest parameter must be larger than 1. >

Apr 11

Anna Beatriz Grigolon, Lissy La Paix2

Apr 5

Estimation of an unlabeled experiment

HI Anna, I understand that you need to specify the availability of each alternative, for example: #

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Estimation of an unlabeled experiment

HI Anna, I understand that you need to specify the availability of each alternative, for example: #

Apr 5

Apr 5

Probabilities do not change

Hi all, I am having a situation where my estimated probabilities do not change even when I modify my

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Probabilities do not change

Hi all, I am having a situation where my estimated probabilities do not change even when I modify my

Apr 5

Muhammad Hafiz Aditya, Bierlaire Michel3

Apr 4

Log Likelihood Positives in Logit Models

Okey thank you! When i used loglogit models, the output parameter like LL, AIC, BIC are same for

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Log Likelihood Positives in Logit Models

Okey thank you! When i used loglogit models, the output parameter like LL, AIC, BIC are same for

Apr 4

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