Hi
rho2 is a metric for discrete choice. So if you use a continuous measurement model for your indicators, then rho2 cannot be calculated
Stephane
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Search found 1261 matches
- 21 Mar 2025, 15:27
- Forum: Estimation results
- Topic: HCM model rho square not applicable problem
- Replies: 1
- Views: 87
- 20 Mar 2025, 15:30
- Forum: Model specification
- Topic: Estimation failed on Joint estimation on RP and SP data
- Replies: 3
- Views: 516
Re: Estimation failed on Joint estimation on RP and SP data
Hi
your SP model doesn't seem to work either if you look at the standard errors, and esepcially b_robusta and b_arabica
Stephane
your SP model doesn't seem to work either if you look at the standard errors, and esepcially b_robusta and b_arabica
Stephane
- 20 Mar 2025, 15:28
- Forum: Errors during model validation and/or estimation.
- Topic: WARNING: Estimation failed. No covariance matrix to compute. MNL
- Replies: 3
- Views: 512
Re: WARNING: Estimation failed. No covariance matrix to compute. MNL
Dennis
difficult to know a priori what is causing the identification issue then. I suggest you look at adding one attribute at a time to see where it goes wrong
Stephane
difficult to know a priori what is causing the identification issue then. I suggest you look at adding one attribute at a time to see where it goes wrong
Stephane
- 20 Mar 2025, 08:18
- Forum: Errors during model validation and/or estimation.
- Topic: Error in LCCM using RP SP data
- Replies: 3
- Views: 2176
Re: Error in LCCM using RP SP data
Hi
just put 0 instead of NA.
Stephane
just put 0 instead of NA.
Stephane
- 20 Mar 2025, 08:16
- Forum: Model estimation
- Topic: The estimation method was changed to BFGS automatically.
- Replies: 2
- Views: 550
Re: The estimation method was changed to BFGS automatically.
Hi
this would suggest that those computers are using an old version of R and/or an old version of Apollo
Stephane
this would suggest that those computers are using an old version of R and/or an old version of Apollo
Stephane
- 20 Mar 2025, 08:15
- Forum: Model specification
- Topic: Estimation failed on Joint estimation on RP and SP data
- Replies: 3
- Views: 516
Re: Estimation failed on Joint estimation on RP and SP data
Hi
do the separate RP and SP models work?
Best wishes
Stephane
do the separate RP and SP models work?
Best wishes
Stephane
- 20 Mar 2025, 08:13
- Forum: Errors during model validation and/or estimation.
- Topic: WARNING: Estimation failed. No covariance matrix to compute. MNL
- Replies: 3
- Views: 512
Re: WARNING: Estimation failed. No covariance matrix to compute. MNL
Hi
your model is overspecified. I don't see where you implemented effects coding, but I suggest you use dummy coding, which is much easier (and gives the same findings). Either way, for an attribute with three levels, you can only estimate two parameters, not three
Stephane
your model is overspecified. I don't see where you implemented effects coding, but I suggest you use dummy coding, which is much easier (and gives the same findings). Either way, for an attribute with three levels, you can only estimate two parameters, not three
Stephane
- 20 Mar 2025, 08:11
- Forum: Model specification
- Topic: Defining the optout
- Replies: 1
- Views: 118
Re: Defining the optout
Hi
the two models are mathematically identical. The fact that the opt-out constant changes makes me think that the attribute you are talking about also relates to the opt-out. Is a specific level for that attribute also the base for the opt-out?
Stephane
the two models are mathematically identical. The fact that the opt-out constant changes makes me think that the attribute you are talking about also relates to the opt-out. Is a specific level for that attribute also the base for the opt-out?
Stephane
- 13 Mar 2025, 09:45
- Forum: Errors during model validation and/or estimation.
- Topic: Error in LCCM using RP SP data
- Replies: 3
- Views: 2176
Re: Error in LCCM using RP SP data
Hi
do you have some NA in your data? That would cause this problem
Stephane
do you have some NA in your data? That would cause this problem
Stephane
- 12 Mar 2025, 18:43
- Forum: Model estimation
- Topic: Latent Class model with EM algorithm
- Replies: 1
- Views: 1894
Re: Latent Class model with EM algorithm
Hi there
it looks like your EM estimation converged to a pretty bad solution. This is somewhat surprising, but EM does not in fact guarantee convergence to a better solution than classical estimation. Did you try some other starting values?
Stephane
it looks like your EM estimation converged to a pretty bad solution. This is somewhat surprising, but EM does not in fact guarantee convergence to a better solution than classical estimation. Did you try some other starting values?
Stephane