Ho: Odds(Outcome-J vs Outcome-K) are independent        of other alternatives.
You used the old syntax of hausman. Click here to        learn about the new syntax.

(storing estimation results as _HAUSMAN)

Omitted       chi2   df   P>chi2   evidence

1      4.721   42    1.000   for Ho   
2    110.872   41    0.000   against Ho
3     -2.562   42    1.000   for Ho   
4     -0.488   42    1.000   for Ho   
5     -0.515   42    1.000   for Ho   

能否将结果2的样本删除，再做mlogit回归？
但删除结果2的样本后，mlogtest,hausman 显示如下结果

Problem determining number of categories.

**** Hausman tests of IIA assumption

Ho: Odds(Outcome-J vs Outcome-K) are independent of other alternatives.
You used the old syntax of hausman. Click here to learn about the new syntax.

(storing estimation results as _HAUSMAN)
factor variables and time-series operators not allowed
r(101);


此时如何处理？