I am trying to estimate a stochastic cost frontier model by using qlim with
the option endogenous ~ frontier (type=half cost).
But it gives me error saying: Syntax error, expecting one of the following: CENSORED, DISCRETE, SELECT, TRUNCATED.
ERROR 200-322: The symbol is not recognized and will be ignored.
ERROR 202-322: The option or parameter is not recognized and will be ignored.
I have SAS 9.1. Can anyone tell me what I am doing wrong.