Sanjoy posted on Wednesday, May 18, 2005 - 11:00 pm
Dear Professor ... my intension is to put the restriction i.e. 4th coefficient is always greater than the first one and the second one is always greater than the third one and then do the ML
CATEGORICAL ARE Y1;
MODEL: Y1 on C23(P1) C43(P2) D32(P3) D43(P4) S B1 X1 X2 X3 X4;
MODEL CONSTRAINT: P4 GE P1; P2 GE P3;
I am getting this output once I run this " *** FATAL ERROR Internal Error Code: PR1002. Error in the constraints model. An internal error has occurred. Please contact us about the error, providing both the input and data files if possible."
can you suggest me please how to deal with inequality constraint in MPlus
MODEL CONSTRAINTS: NEW (high low); high = 0.05; low = -0.05; high > EXP(a1)/(1+EXP(a1)) - EXP(c1)/(1+EXP(c1)); low < EXP(a1)/(1+EXP(a1)) - EXP(c1)/(1+EXP(c1));
This code works smoothly, however when I increase the number of the same kind of inequality constraints I keep getting the following error message: THE MODEL ESTIMATION DID NOT TERMINATE NORMALLY DUE TO AN ERROR IN THE COMPUTATION. CHANGE YOUR MODEL AND/OR STARTING VALUES.
I realize that the model has become very complex, but is there any way to get rid of this error message?