Hi
I also need to know the LL you get with MNL and in WTP space, please, i.e. where it runs out of iterations
Stephane
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Search found 998 matches
- 03 Feb 2024, 14:05
- Forum: Model estimation
- Topic: Estimation of MNL and MMNL in WTP space issues
- Replies: 5
- Views: 2496
- 01 Feb 2024, 11:15
- Forum: Model estimation
- Topic: Estimation of MNL and MMNL in WTP space issues
- Replies: 5
- Views: 2496
Re: Estimation of MNL and MMNL in WTP space issues
Hi
did you first try a model in preference space?
Stephane
did you first try a model in preference space?
Stephane
- 31 Jan 2024, 10:51
- Forum: Estimation results
- Topic: Interpretation of coefficients
- Replies: 3
- Views: 1002
Re: Interpretation of coefficients
1. Again, it depends on the units. Imagine that I have b_cost = -0.1 and b_time = -0.05. You can't say that cost matters more than time as it depends on the units. Imagine that cost is in € and time is in minutes. Then what the above is telling us is that €1 is more important than 1 minute, but obvi...
- 30 Jan 2024, 16:00
- Forum: Model specification
- Topic: Nested Logit-location choice joint with mode utility
- Replies: 1
- Views: 1483
Re: Nested Logit-location choice joint with mode utility
Hi
I think the reason your model is not working at the moment is that you only have constants in the utilities, which makes it impossible to estimate a nesting structure
Regarding your second question, can you explain a bit more what you mean, please?
Thanks
I think the reason your model is not working at the moment is that you only have constants in the utilities, which makes it impossible to estimate a nesting structure
Regarding your second question, can you explain a bit more what you mean, please?
Thanks
- 30 Jan 2024, 15:29
- Forum: Installation and updating
- Topic: Wrong results when using the latest version
- Replies: 1
- Views: 2065
Re: Wrong results when using the latest version
hi,
it seems like there has been an issue with that model all along as the estimates are the same across classes, so this is not a version issue
We will look into it
Stephane
it seems like there has been an issue with that model all along as the estimates are the same across classes, so this is not a version issue
We will look into it
Stephane
- 30 Jan 2024, 15:02
- Forum: Data preparation, processing and pre-estimation analysis
- Topic: Effects coding MNL model and relative importance.
- Replies: 1
- Views: 2147
Re: Effects coding MNL model and relative importance.
Ellis your model specification is correct, as is the calculation of the beta for the reference level and the relative importance calculation (though I'm not a fan of this). But it makes no sense to calculate p values for the reference category. Think about it this way. With categorical variables, th...
- 30 Jan 2024, 14:52
- Forum: Model specification
- Topic: Latent Class Analysis with Nested Logit Model
- Replies: 6
- Views: 8015
Re: Latent Class Analysis with Nested Logit Model
Hi
we don't have ready built examples or models for sequential choice. There are many factors to consider, such as inter-dependencies, including of availabilities
Stephane
we don't have ready built examples or models for sequential choice. There are many factors to consider, such as inter-dependencies, including of availabilities
Stephane
- 30 Jan 2024, 14:48
- Forum: Estimation results
- Topic: Interpretation of coefficients
- Replies: 3
- Views: 1002
Re: Interpretation of coefficients
hi
no, it cannot. All it tells you is that ONE UNIT of attribute 1 has more influence than ONE UNIT of attribute 2. So this all depends on the units, etc
Stephane
no, it cannot. All it tells you is that ONE UNIT of attribute 1 has more influence than ONE UNIT of attribute 2. So this all depends on the units, etc
Stephane
- 30 Jan 2024, 14:45
- Forum: Model specification
- Topic: Are latent variables in Hybrid choice model correlated?
- Replies: 7
- Views: 5821
Re: Are latent variables in Hybrid choice model correlated?
Hi
can you show us the entire code as it's not clear where eta1 and eta2 are used as you later only use eta_LV1
But it's certainly possible, you just need to think about identification too
Stephane
can you show us the entire code as it's not clear where eta1 and eta2 are used as you later only use eta_LV1
But it's certainly possible, you just need to think about identification too
Stephane
- 30 Jan 2024, 14:43
- Forum: Feature requests
- Topic: A data contain too many observations for each person even workInLogs=TRUE
- Replies: 3
- Views: 2267
Re: A data contain too many observations for each person even workInLogs=TRUE
Hi
you could also try some sampling approaches
Stephane
you could also try some sampling approaches
Stephane