Decision Optimization

Hello, 

I would like to create arrays as small in size as possible to decrease the number of variables and parameters and, as a result, computation time.

In one of my matrixes, the number of columns depend on the row index... I have the following code in my .mod file:

range J      = 1..n_jobs; 

range R      = 1..n_recipe;

int j0[set1] = [1];

int jIt[set1] = [n_jobs];

range Jit    = j0[1]..jIt[1];

int rs[R,0..2] = ...;

int rJ[J] = ...; 

dvar float+ t[j in Jit, i in 1..rs[rJ[j],2]];

where rs and rJ are defined on a .dat file.

I get the following error: Variable indexer size not allowed for a generic array

What am I doing wrong?

This used to work fine in AMPL (I recently switched to OPL)...

Thank you

Sam

In

https://www.linkedin.com/pulse/making-decision-optimization-simple-alex-fleischer/



array variable indexer size - 3 ways : union , tuple set, decision expression

Hello, 

I would like to create arrays as small in size as possible to decrease the number of variables and parameters and, as a result, computation time.

In one of my matrixes, the number of columns depend on the row index... I have the following code in my .mod file:

range J      = 1..n_jobs; 

range R      = 1..n_recipe;

int j0[set1] = [1];

int jIt[set1] = [n_jobs];

range Jit    = j0[1]..jIt[1];

int rs[R,0..2] = ...;

int rJ[J] = ...; 

dvar float+ t[j in Jit, i in 1..rs[rJ[j],2]];

where rs and rJ are defined on a .dat file.

I get the following error: Variable indexer size not allowed for a generic array

What am I doing wrong?

This used to work fine in AMPL (I recently switched to OPL)...

Thank you

Sam

Thank you...

Is there a problem with the link "union"...it seems to be the same as "tuple set"...

In

https://www.linkedin.com/pulse/making-decision-optimization-simple-alex-fleischer/



array variable indexer size - 3 ways : union , tuple set, decision expression

Hello, 

I would like to create arrays as small in size as possible to decrease the number of variables and parameters and, as a result, computation time.

In one of my matrixes, the number of columns depend on the row index... I have the following code in my .mod file:

range J      = 1..n_jobs; 

range R      = 1..n_recipe;

int j0[set1] = [1];

int jIt[set1] = [n_jobs];

range Jit    = j0[1]..jIt[1];

int rs[R,0..2] = ...;

int rJ[J] = ...; 

dvar float+ t[j in Jit, i in 1..rs[rJ[j],2]];

where rs and rJ are defined on a .dat file.

I get the following error: Variable indexer size not allowed for a generic array

What am I doing wrong?

This used to work fine in AMPL (I recently switched to OPL)...

Thank you

Sam

Hi,

I updated the file for union

regards

Thank you...

Is there a problem with the link "union"...it seems to be the same as "tuple set"...

In

https://www.linkedin.com/pulse/making-decision-optimization-simple-alex-fleischer/



array variable indexer size - 3 ways : union , tuple set, decision expression

Hello, 

I would like to create arrays as small in size as possible to decrease the number of variables and parameters and, as a result, computation time.

In one of my matrixes, the number of columns depend on the row index... I have the following code in my .mod file:

range J      = 1..n_jobs; 

range R      = 1..n_recipe;

int j0[set1] = [1];

int jIt[set1] = [n_jobs];

range Jit    = j0[1]..jIt[1];

int rs[R,0..2] = ...;

int rJ[J] = ...; 

dvar float+ t[j in Jit, i in 1..rs[rJ[j],2]];

where rs and rJ are defined on a .dat file.

I get the following error: Variable indexer size not allowed for a generic array

What am I doing wrong?

This used to work fine in AMPL (I recently switched to OPL)...

Thank you

Sam

Thank you Alex!! 

Hi,

I updated the file for union

regards

Thank you...

Is there a problem with the link "union"...it seems to be the same as "tuple set"...

In

https://www.linkedin.com/pulse/making-decision-optimization-simple-alex-fleischer/



array variable indexer size - 3 ways : union , tuple set, decision expression

Hello, 

I would like to create arrays as small in size as possible to decrease the number of variables and parameters and, as a result, computation time.

In one of my matrixes, the number of columns depend on the row index... I have the following code in my .mod file:

range J      = 1..n_jobs; 

range R      = 1..n_recipe;

int j0[set1] = [1];

int jIt[set1] = [n_jobs];

range Jit    = j0[1]..jIt[1];

int rs[R,0..2] = ...;

int rJ[J] = ...; 

dvar float+ t[j in Jit, i in 1..rs[rJ[j],2]];

where rs and rJ are defined on a .dat file.

I get the following error: Variable indexer size not allowed for a generic array

What am I doing wrong?

This used to work fine in AMPL (I recently switched to OPL)...

Thank you

Sam