## Problem in NLPQN

Occasional Contributor
Posts: 17

# Problem in NLPQN

this my code and after I run it I got this error message:

ERROR: Overflow error in NLPQN.

operation : NLPQN at line 5279 column 1

operands  : *LIT1222, k, optn, , , , , , *LIT1223

*LIT1222      1 row       1 col     (character, size 3)

fun

k      1 row       2 cols    (numeric)

0         0

optn      1 row      11 cols    (numeric)

*LIT1223      1 row       1 col     (character, size 3)

con

statement : CALL at line 5279 column 1

*****************************************

where  l and g are vectors

the code is :

proc
iml;

start
fun(K) global

(l,e,g,p);

sumf=0;

do
i =
1to
p;

sumf
= sumf + (((e*l)+ ( k**
2

* g**
2 )) /(l+
k)**
2);

end;

return
(sumf);

finish
fun;

start
con(k) global

(l,lg,e1,n,ny,p,g2,z,g);

c=j(5,1,0);

sumc1=0;

do
i =
1to
p;

sumc1
= sumc1 + (

(g2*l**
2)

/(l+k)**
2  );

end;

sumc3=0;

do
i =
1to
p;

sumc3
= sumc3 + (((e1*l)+ ( k**
2

* g**
2 )) /(l+
k)**
2);

end;

sumc41=0;

do
i =
1to
n;

sumc41
= sumc41 +(

(ny-((z[i,
1]*g[1]*l[1])/(la[1]+k[1]))-((z[i,2]*g[2]*l[2])/(l[2]+k[2]))

)**
2  );

end;

sumc42=0;

do
i=
1to
n;

sumc42=sumc42+(1-((z[i,1]**2)/(l[1]+k[1]))-((z[i,2]**2)/(l[2]+k[2]))

);

end;

sumc4=(n*sumc41)/(sumc42)**2;

c[1]=
lg-sumc1;

c[2]=k[1];

c[3]=k[2];

c[4]=3-sumc3;

c[5]=4-sumc4;

return
(c);

finish
con;

k=j(1,2,0);

optn=j(1,11,.);

optn[
11]=0;

optn[
10]=5;

call nlpqn (rc, kres, "fun", k, optn)
nlc=
"con";

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Posts: 538