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Get expression of Hessian and Gradient for discrete choice model with quantile transformation
deriv_disc_expr(
mnf1 = NULL,
smodu1,
attribute = "grad",
ffor = ffor,
MNtypef = "logit"
)
object containing MNL expressions
parameter matrix
can be "grad" or "hessian"
discrete choice equations
logit or dogit
derivative expression of discrete equations