/// <summary>
/// Returns a random hypercube using a rouleteWheel method.
/// </summary>
/// <returns>The number of the selected hypercube.</returns>
public int RouletteWheel()
{
//Calculate the inverse sum
double inverseSum = 0.0;
foreach (int aHypercubes in hypercubes)
{
if (aHypercubes > 0)
{
inverseSum += 1.0 / (double)aHypercubes;
}
}
//Calculate a random value between 0 and sumaInversa
double random = JMetalRandom.NextDouble(0.0, inverseSum);
int hypercube = 0;
double accumulatedSum = 0.0;
while (hypercube < hypercubes.Length)
{
if (hypercubes[hypercube] > 0)
{
accumulatedSum += 1.0 / (double)hypercubes[hypercube];
}
if (accumulatedSum > random)
{
return(hypercube);
}
hypercube++;
}
return(hypercube);
}
public static void ShuffleArray <T>(T[] array)
{
for (int i = array.Length; i > 1; i--)
{
int j = JMetalRandom.Next(i);
//Swap values
T tmp = array[j];
array[j] = array[i - 1];
array[i - 1] = tmp;
}
}
/// <summary>
/// Returns a random hypercube that has more than zero solutions.
/// </summary>
/// <returns>The hypercube.</returns>
public int RandomOccupiedHypercube()
{
int rand = JMetalRandom.Next(0, occupied.Length - 1);
return(occupied[rand]);
}
