Hi all,

When I run my model I get this error - Domain error(s) in

nonlinear functions.

Check bounds on variables. when I click on the error it gives me

ERRORS/WARNINGS IN EQUATION EQ64(cext)

1 error(s): vcPower: FUNC DOMAIN: x**c, x < 0

**** ERRORS/WARNINGS IN EQUATION EQ87

1 error(s): vcPower: FUNC DOMAIN: x**c, x < 0

EQ64(x)… EXD(x) =e= EXDO(x)*[e*PWX(x)/PE_fob(x)]**sigma_XD(x);

EQ87… PIXINV =e= PROD[i$gamma_INV(i),(PC(i)/PCO(i))**gamma_INV(i)];

The error for equation 64 is however peculiar to only one of the

commodities ( cext) out of the 10 commodities in my model. please can

anyone help me fix this.

thanks for your help always

TAIWO ADEREMI

PHD CANDIDATE

UNIVERSITY OF IBADAN

\

Hi Taiwo

If you define the variable as positive and give a lower bound of 0.0001, you will probably don’t have this problem anymore.

Renger

-----UrsprÃ¼ngliche Nachricht-----

Von: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] Im Auftrag von TAIWO ADEREMI

Gesendet: Saturday, October 20, 2012 6:54 PM

An: gamsworld

Betreff: Domain error(s) in nonlinear functions. Check bounds on variables.

Hi all,

When I run my model I get this error - Domain error(s) in nonlinear functions.

Check bounds on variables. when I click on the error it gives me

ERRORS/WARNINGS IN EQUATION EQ64(cext)

1 error(s): vcPower: FUNC DOMAIN: x**c, x < 0

**** ERRORS/WARNINGS IN EQUATION EQ87

1 error(s): vcPower: FUNC DOMAIN: x**c, x < 0

EQ64(x)… EXD(x) =e= EXDO(x)*[e*PWX(x)/PE_fob(x)]**sigma_XD(x);

EQ87… PIXINV =e= PROD[i$gamma_INV(i),(PC(i)/PCO(i))**gamma_INV(i)];

The error for equation 64 is however peculiar to only one of the commodities ( cext) out of the 10 commodities in my model. please can anyone help me fix this.

thanks for your help always

TAIWO ADEREMI

PHD CANDIDATE

UNIVERSITY OF IBADAN

–

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Reply-to: gamsworld@googlegroups.com

Hi Renger,

Thanks for your suggestion. please how do I define the

variable as a positive one and give a lower bound of 0.0001. please I

would be glad if you can be explicit on this. Thanks

Taiwo

On 10/21/12, Renger van Nieuwkoop wrote:

Hi Taiwo

If you define the variable as positive and give a lower bound of 0.0001, you

will probably don’t have this problem anymore.

Renger

-----UrsprÃ¼ngliche Nachricht-----

Von: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] Im

Auftrag von TAIWO ADEREMI

Gesendet: Saturday, October 20, 2012 6:54 PM

An: gamsworld

Betreff: Domain error(s) in nonlinear functions. Check bounds on variables.

Hi all,

When I run my model I get this error - Domain error(s) in nonlinear

functions.

Check bounds on variables. when I click on the error it gives me

```
ERRORS/WARNINGS IN EQUATION EQ64(cext)
1 error(s): vcPower: FUNC DOMAIN: x**c, x >
```

**** ERRORS/WARNINGS IN EQUATION EQ87

1 error(s): vcPower: FUNC DOMAIN: x**c, x >

EQ64(x)… EXD(x) =e= EXDO(x)*[e*PWX(x)/PE_fob(x)]**sigma_XD(x);

EQ87… PIXINV =e= PROD[i$gamma_INV(i),(PC(i)/PCO(i))**gamma_INV(i)];

The error for equation 64 is however peculiar to only one of the commodities

( cext) out of the 10 commodities in my model. please can anyone help me fix

this.

thanks for your help always

TAIWO ADEREMI

PHD CANDIDATE

UNIVERSITY OF IBADAN

–

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