ApolloChoiceModelling forum

Hi Jose when combining latent class with continuous mixtures, there are several different ways of doing so, especially a distinction between mixing inside the classes and mixing of the class allocation probabilities. A generic function like the apollo_conditionals or apollo_lcConditionals would then...

Hi in estimation, you maximise the log-likelihood of the joint model, i.e. the object P[["model"]] which is given as the product of the RP and SP choices. But in prediction, you obviously predict individual choices, not products of RP and SP choices. That's why in prediction, if your model...

Hi this happens automatically. Please note this is explained on the website and in the manual. Here is the text from the website: How can I capture the panel structure of my data in Apollo? The treatment of panel data depends completely on the model being used. Whenever the data contains multiple ch...

Sven

we've had problems with R4.0 though it works on our machines now with parallel too. Can I suggest that you try to reinstall Apollo as well as updating libraries that Apollo uses (Rcpp, maxLik, mnormt, mvtnorm, graphics, coda, sandwich, randtoolbox, numDeriv, RSGHB, parallel, Deriv)

Stephane

Hi Sven

to try and diagnose whether this is an issue with your model or with your installation of R/your machine, can you please try running this example from the website, which uses multi-core too: http://apollochoicemodelling.com/files/ ... ample_14.r

Thanks

Stephane

Hi yes, this is very straightforward to do. Let's use a simple example where you have that beta_cost follows a negative lognormal distribution, where we then estimate the parameters (mean and sd) of the Normal distribution of log(-beta_cost). Let's call these mu and sig and assume that mu is differe...

Hi Juergen

sure. We will add this as an output in time for the official release of v0.1.1

And yes, the order is the same as in the database

Stephane

Sure,

but for the binary one, it would be easier for you to use apollo_mnl than apollo_ol

Best wishes

Stephane

Hi Silvia

if an attribute is stochastic, whether as a function of reaction time or some other phenomenon, then you can code it in apollo_randCoeff - it makes no difference whether the components included in that list are random coefficients or random variables

Best wishes

Stephane

Hi Silvia

this is a very specific application of a model. You could definitely code the model in Apollo but this would involve some manual coding of the model components and then using Apollo for the estimation

Best wishes

Stephane