#56 Using variables for the decision variables bounds (lower,upper).

[Anonymous]

Hi
Is it possible to set the decision variables bounds (lower & upper) to a variables declared somewhere else in my program out side the newSolution method ?????

like this
solution.setVariable(i, EncodingUtils.newReal(small,large));

and the variables small and large are declared and assigned values out side the newSolution method().

[Anonymous]

You could try extending the RealVariable class and overriding the getLowerBound() and getUpperBound() methods.

[Anonymous]

Hi, Thank you for the reply
Due of being a new user of Java as well MOEA, please can you provide me with more details about how to extend the RealVariable class .

This is part of my code

@Override
public void evaluate (Solution solution) {
.....
.....
// finding the smallest and largest numbers in the data set
largest = points [0] [0] ;
smallest = points [0] [0] ;
for (int i = 0; i < 40; ++i)
{
for (int j = 0; j < 3; ++j)
{
if(points[i] [j] > largest)
largest = points[i] [j];
else if (points[i] [j] < smallest)
smallest = points[i] [j];
}
}
............
............
@Override
public Solution newSolution ()
{
Solution solution = new Solution(numberOfVariables,
numberOfObjectives);
for(int i=0; i< numberOfVariables; i++)
{
solution.setVariable(i, new RealVariable(smallest, largest));
}
return solution;
}

Thank you