TOS1 N TPOS1 N bike N k
-----------------------------------------
TO1 160 --- TPO1 160 --- 3 160 40
TO2 632 --- TPO2 236 --- 4 236 59
+- TPO3 396 --- 1 112 28
+- 2 284 71
-----------------------------------------
total 792 198
constraint 1 [TO1_tau]_cons=1
constraint 2 [TO2_tau]_cons=1
nlogit choice || TOS1 : age BIM || TPOS1 : student || bike:, case( id ) constaints(1 2)
option constaints() not allowed
equation 4 defining level 3 is improperly specified
请问这是怎么了