ApolloChoiceModelling forum

Dear Stephane,

Thank you for the reply. Indeed this is the mistake I made when sending out the survey by only allowing the participants to choose one of the funds......
But now problem solved......
Thank you again for your time!

Best,
Lydia

Hi Stephane, The LL of MDCNEV model is as follows, LL(start) : -28564.04 LL(0) : Not applicable LL(C) : Not applicable LL(final) : -24889.18 Rho-square (0) : Not applicable Adj.Rho-square (0) : Not applicable AIC : 49790.37 BIC : 49826.79 Best, Yadi

Dear Stephane, Yes, I have run the MDCEV model before I try to use MDCNEV, base model, model with socio-demographics, model with socio-demographics and other personal traits, the estimations do not return any errors. The results from the base model are as follows, LL(start) : -42920.59 LL(0) : Not a...

Hi Stephane, "How does the model compare to a non-nested MDCEV?" The idea is that nrfund and rfund should be nested in one category, but they are not chosen by every participant. The amount of outside good "other" here is calculated by other = monthly_income - nrfund - rfund + 1 ...

Dear Stephane, Thank you for the investigation. I annotated the "apollo_panelProd" and also changed the name of "budget" in my original dataset to a different name. Now it works! While in the output, there are many missing values for both utility parameters and translation parame...

Hi Stephane,

I have sent the code as well as the data to you via email. Please let me know if more information is needed.
Thank you for the help!

Best,
Lydia

Dear Stephane, Thank you for your reply. I am using the version 0.2.7. After changing the normalization from "mandatory" to "optional", the same error still shows up as follows, "Error in mdcnev_settings$probs_MDCNEV(mdcnev_settings) : object 'tmp' not found" Could you ...

Dear all, When using MDCNEV model, I run into this message: model = apollo_estimate(apollo_beta, apollo_fixed, apollo_probabilities, apollo_inputs) Preparing user-defined functions. Error in mdcnev_settings$probs_MDCNEV(mdcnev_settings) : object 'tmp' not found Could you please help me with checking...

Hi David, Thank you for the kind suggestion. Also for my case where one individual has only one observation, this line of code has been left out. ### Take product across observation for same individual P = apollo_panelProd(P, apollo_inputs, functionality) Now the model works perfectly, really apprec...

Hi David, Received with many thanks! I try to rewrite the code as: ### Define budget budget = saving + investment + other ### Define settings for MDCEV model mdcev_settings <- list(alternatives = alternatives, avail = avail, continuousChoice = continuousChoice, V = V, alpha = alpha, gamma = gamma, s...