Re: [Gretl-users] ordered probit

On Jan 7, 2015, at 3:50 AM, Sven Schreiber <svetosch(a)gmx.net&gt; wrote: > Am 07.01.2015 um 02:00 schrieb Allin Cottrell: > > > Thanks. After looking at Peter's data and script I can see what's > happening. > > Ordered probit is misbehaving when the dependent variable is not > integer-valued. (Peter's dependent variable has values {0.5, 1, 1.5, > 2.5, 3, 3.5, 4, 4.5, 5, 6, 6.5, 7.5, 12}.) We'll take a closer look > at this -- with a view to either handling correctly or rejecting > such data -- but in the meantime a workaround would be to multiply > the dependent variable by 2, in which case it should be treated > correctly. > Was that variable marked as discrete? I vaguely remember a discussion about the possibility to tell gretl that even non-integer data could come from a discrete variable. So from a user's point of view I'd say that (ordered) probit should work when the variable is "officially" discrete. If it's not marked as such *and* is not obviously discrete such as not being integer-valued I think (fwiw) it's ok if gretl refuses to do ordered probit on that. cheers, sven _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users