[Limdep Nlogit List] Problem with maximize

[Robert Nakosteen]

Greetings all,

 

The following maximization routine was "test run" with a dummy data file.
Now, with the only changes being a real data file and new variable names,
the program does not run. Here is the program, and the error messages. Any
ideas?

 

maximize; fcn = bx   = b0 + b1*workw3+b2*agew3+b3*agewsq+b4*Profw3+b5*Sal...

    | gz   = g0 + g1*agew3+g2*agewsq+g3*young+G4*house+G5*learnw3+G6*l
...

    | P1a   = sew/(se*se)

    | P1b   = P1a*(learnw3-bx)

    | P1c   = gz + P1b

    | P2   = 1 - (sew*sew)/(se*se)

    | P3   = sqr(P2)

    | PhiA = Phi(P1c/P3)

    | ge   = (N01((learnw3 - bx)/se))/se

    | L1   = log(PhiA+0.00001)

    | L2   = log(1.00001-PhiA)

    | L3   = log(ge+0.00001)

    | divor97*(L1 + L3) + (1-divor97)*(L2 + L3);

    labels = b0,b1,b2,b3,b4,b5,b6,b7,g0,g1,g2,g3,g4,g5,g6,g7,g8,se,sew;
...

    start =  7.9,0.003,-0.3,0.003,1.9,1.7,0.8,0.2,.3,-.02,0.0,0.01,-0.12,
...

Error:   759: Name in expr not label,variable,scalar,matrix,list,or FNi.

Error:   588: Error translating function in optimization command.

Error:   589: Error is in LEARNW3-BX

Error:    69: WALD,NLSQ,MAXIMIZE. Cannot translate the listed string

--> Stop$

 

 

Thank you in advance.

 

Robert A. Nakosteen

Professor

Isenberg School of Management

University of Massachusetts/Amherst

Amherst, MA  01003

 

Telephone:  413-545-5687

FAX: 413-545-3858

 

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