public virtual void SetControllerFor(ref GADataSet.ProblemsRow p, int size)
{
if (p == null)
{
throw new Exception("No Problem ID given");
}
//DETERMINE CONDITIONS from PROBLEM ID
conditions = p.GetConditionsRows();
if (conditions == null)
{
throw new Exception("No Problem Conditions given");
}
problemData = p.GetKnapDataRows();
if (problemData.Length == 0)
{
//todo:
throw new Exception("No Problem Variables and Values given");
}
SIZE = size;
PROBLEMID = p.ProblemID;
variableNames = problemData.FirstOrDefault()
.Table.Columns.OfType <DataColumn>()
.Where(o => !o.ColumnName.Contains("ID"))
.Select(o => o.ColumnName).ToArray();
}
/// <summary>
/// FUNCTION TO PERFORM AVERAGE AND HISTOGRAM
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="problema"></param>
public static void DoStatistics <T>(T problema)
{
GADataSet.ProblemsRow currentProblem = problema as GADataSet.ProblemsRow;
IEnumerable <GADataSet.GARow> gasrows = currentProblem.GetGARows();
int min = gasrows.Min(o => o.ChromosomeLength);
int max = gasrows.Max(o => o.ChromosomeLength);
HashSet <string> hash;
List <GADataSet.SolutionsRow> list;
// List<GADataSet.StringsRow> strs;
hash = new HashSet <string>();
list = new List <GADataSet.SolutionsRow>();
// strs = new List<GADataSet.StringsRow>();
//create lamda expression to filter
Func <GADataSet.SolutionsRow, bool> funcion;
funcion = FilterByGenotype(ref hash, ref list);
//iterate min max chromosome lenght for all genetic algorithms
for (int j = min; j <= max; j++)
{
gasrows = currentProblem.GetGARows();
IEnumerable <GADataSet.GARow> subs = gasrows
.Where(o => o.ChromosomeLength == j)
.ToList();
GADataSet.GARow subFirst = subs.FirstOrDefault();
subFirst.AverageGA(ref subs);
//select GARow childrens
IEnumerable <GADataSet.SolutionsRow> knaprows = subs
.SelectMany(o => o.GetSolutionsRows()).ToList();
hash.Clear(); //clear
list.Clear(); //clear
foreach (GADataSet.SolutionsRow item in knaprows)
{
funcion(item);
}
double bestFitness = list.Max(o => o.Fitness);
subFirst.Fitness = bestFitness;
int count = knaprows.Count();
for (int d = knaprows.Count() - 1; d >= 0; d--)
{
GADataSet.SolutionsRow s = knaprows.ElementAt(d);
if (s.ShouldDelete)
{
if (s.StringsRowParent != null)
{
s.StringsRowParent.Delete();
}
s.Delete();
}
else
{
s.GAID = subFirst.ID;
s.Generations /= s.Counter;
s.TimeSpan /= s.Counter;
}
}
count = subs.Count();
for (int d = subs.Count() - 1; d >= 1; d--)
{
subs.ElementAt(d).Delete();
}
}
}
