effecush {CUB} | R Documentation |
Compute the opposite of the loglikelihood function for CUSH models with covariates to explain the shelter effect.
effecush(paravec, esternocush, shelter, m)
paravec |
Vector of the initial parameters estimates |
esternocush |
Matrix binding together the vector of ordinal data and the matrix XX of explanatory variables whose first column is a column of ones needed to consider an intercept term |
shelter |
Category corresponding to the shelter choice |
m |
Number of ordinal categories |
It is called as an argument for "optim" within CUSH function (when no covariate is included) as the function to minimize.