Hi Stephane,
I am trying to specify a latent class model. But the class is not fixed for each individual over time. In other words, starting from one period, an individual's situation is changed, his status/group is changed. In model specification, I want to include not only individual demographic variables, but also time specific variablbes to indicate that class changes. Is that possible in Apollo?
Thanks,
Sheldon
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latent class model
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Re: latent class model
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 nature of the data when calculating the standard errors
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Re: latent class model
just so say that there is a small bug preventing this from working at the moment. It's being fixed for version 0.2.8, the development version of which will be on our website in the coming days
Re: latent class model
Hi Stephane,stephanehess wrote: ↑02 Feb 2022, 22:22 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 nature of the data when calculating the standard errors
could you provide some examples about the intra-individual version of LC? in the manual of Apollo, I do not see this kind of explanation. in my latent class model, I assume that under different travel context, such as travel purpose, individual may belong to different classes which have different model specification. however, to this problem, I do not know how to solve with the class membership probability. in a inter-individual version, the probability is π n,s, representing individual n in class s. therefore, if it is an intra-individual version, should I set the probability of π n,s,t in choice task t?
Best,
Qiang
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Re: latent class model
Hi
I don't have any such example files, but like I said, this would all be accommodated by moving the apollo_panelProd call to be after apollo_lc. It's a very simply change for you to make
For the class allocation model, you could then include covariates that vary across observations in the class allocation model too
Stephane
I don't have any such example files, but like I said, this would all be accommodated by moving the apollo_panelProd call to be after apollo_lc. It's a very simply change for you to make
For the class allocation model, you could then include covariates that vary across observations in the class allocation model too
Stephane