ApolloChoiceModelling forum

Hi, sure, this is possible. What you need to do is to only have the call to apollo_panelProd after the averaging across classes, i.e. apollo_lc. So essentially, this is an intra-individual version of LC. The call to apollo_panelProd at the end will mean that you still recognise the repeated choice ...

Hi, I tried to estimate a model descripted topic. in my model, there are two classes with different decision rules, which means that there are different parameters to estimate across classes. but, according to the examples of EM algorithm in Apollo, all parameters need to vary across classes and as ...

Hi, I tried to use EM algorithm to estimated a latent class model, and in a class of my model, I set a joint estimation by aplollo_combineModels function. but when I start to estimate it, "This function is only suitable for single component models, i.e. no use of apollo_combineModels or manual ...

Hi Qiang, We believe there may be a problem with the value of your explanatory variables associated to the coefficients that become zero. Could you tabulate (or summarise) the values of explanatory variables diredist1, diredist2, ..., purpose1, purpose2, etc.? Best David Hi David, I guess I know th...

Hi David, Thanks for your reply. in fact, to these category variables, I used the effect coding, shown as below. Each of the attributes of purpose and accompany have four levels. purpose1 purpose2 purpose3 accom1 accom2 accom3 0 1 0 0 1 0 0 1 0 -1 -1 -1 1 0 0 1 0 0 1 0 0 0 0 1 -1 -1 -1 0 1 0 -1 -1 -...

Hi, I try to estimate a latent class model, but the results show that the coefficients of context variables used in class allocation model are zero, therefore, I want to ask how I can solve the problem? or only the socio-demographic variables can be used in class allocation model? Besides, the resul...

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 Hi Stephane, Thanks for your reply. I want to estimate a model similar with Esad, establishing a latent class model and setting...

Esad there are a few different questions in your post, and I'll reply to these in turn. 1. It remains a common misunderstanding to see nested logit as being a model for sequential choices. This is not the case. The model explains the choice between mutually exclusive alternatives. In a model where ...

Hi Stephane,

the running time is so long now, if i want to speed up it, what method could help it? i can apply for using supercomputer of my university, but I do not know if it will work.

Best,
Qiang

I established a mixed logit model and about 20 random parameters are set. when I use 1000 MLHS draws for these parameter, the model runs a very long time, about several days. therefore, I use the speedTest function to explore the most suitable number of cores and the seconds used in likelihood calcu...