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alpha_1
2005 Jun 14
2
Logistic regression with more than two choices
...ent independent variables for the
different alternatives in the model. Formally, I mean that:
Pr(A)=exp(uA)/(exp(uA)+exp(uB)+exp(uC)+exp(uD)
Pr(B)=exp(uB)/(exp(uA)+exp(uB)+exp(uC)+exp(uD)
...
where uA, uB, uC and uD are linear functions with different independent
variables, e.g. uA=alpha_A1*Age, uB=alpha_B1*Sex.
Do you know how to estimate this type of models in R?
Best regards, Ville Koskinen