Calculating model's log-likelihood function. Internal function that users should not call directly.
loglike(
eta,
Choice_Set_List,
Choice_Set_Code,
Base_Prod,
Num_Prod,
Num_Attr,
Alts_Same_Choice_Set,
Is_Purchase
)numeric vector, the model parameters to be estimated
list, product code included for each choice set.
numeric, choice set code Number specified for calculating log-likelihood.
numeric, the baseline product number
numeric, the number of all products in observed data.
numeric, the number of attributes in observed data.
list, for internal calculation, a list of data exposed to the same choice set.
list, for internal calculation, list of customers who are exposed to the same choice set who purchased the product. If purchased 1, otherwise 0.
The value of log-likelihood.