Hi, thanks for your reply.
It was precisely reading Train's that I wondered if my results were wrong. But I didn't clearly understood it.
Thanks a lot for the clarification.
J.
Important: Read this before posting to this forum
- This forum is for questions related to the use of Apollo. We will answer some general choice modelling questions too, where appropriate, and time permitting. We cannot answer questions about how to estimate choice models with other software packages.
- There is a very detailed manual for Apollo available at http://www.ApolloChoiceModelling.com/manual.html. This contains detailed descriptions of the various Apollo functions, and numerous examples are available at http://www.ApolloChoiceModelling.com/examples.html. In addition, help files are available for all functions, using e.g. ?apollo_mnl
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- Check that the same issue has not already been addressed in the forum - there is a search tool.
- Ensure that the correct syntax has been used. For any function, detailed instructions are available directly in Apollo, e.g. by using ?apollo_mnl for apollo_mnl
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- Make sure that R is using the latest official release of Apollo.
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Search found 6 matches
- 14 Jun 2021, 16:23
- Forum: Models and estimation
- Topic: Elasticities in MNL
- Replies: 5
- Views: 9873
- 09 Jun 2021, 10:24
- Forum: Models and estimation
- Topic: Elasticities in MNL
- Replies: 5
- Views: 9873
Elasticities in MNL
Hi all, I came up with a doubt taking a look at the calculation of elasticities in a multinomial logit. Shouldn't the elasticities and cross-elasticities sum up to 1 due to the IIA property? It can be seen in Apollo_example_3.r that this is not the case. And it is certainly not in my models either. ...
- 24 Feb 2021, 17:19
- Forum: Bug reports
- Topic: Estimates not appearing
- Replies: 4
- Views: 10430
Re: Estimates not appearing
Sure, will do.
- 19 Feb 2021, 15:51
- Forum: Bug reports
- Topic: Estimates not appearing
- Replies: 4
- Views: 10430
Re: Estimates not appearing
Thanks for your reply. Sure, here it is. ```{r Init, include=FALSE} print("To strive, to seek, to find, and not to yield.") ``` ```{r Libraries, include=FALSE} suppressWarnings(suppressMessages(library(apollo))) suppressWarnings(suppressMessages(library(dplyr))) ``` ```{r, include=FALSE} #...
- 18 Feb 2021, 12:58
- Forum: Model specification
- Topic: Cross-nested specification
- Replies: 1
- Views: 3649
Cross-nested specification
Hi, I'm finding trouble in estimating a CNL specification that is slighlty different than that shown in the examples. In Apollo_example_6.r, as the manual explains, there are three nests; One for air and rail, One of Bus and Rail, and one in which Car is all alone. Since car is on its own, the nesti...
- 18 Feb 2021, 11:29
- Forum: Bug reports
- Topic: Estimates not appearing
- Replies: 4
- Views: 10430
Estimates not appearing
Hi, I'm not sure whether this is a bug but or I'm doing something wrong, my apologies in advance if the latter. When running apollo_modelOutput(model) the output in the console does not show anything below Estimates: . Please, see this example, for instance: Model run using Apollo for R, version 0.2...