public static List <Figure>[] Clustarization(List <Figure> list, int count)
{
//Normalization(list);
Double maxP = 0;
Double maxE = 0;
Double minE = Double.MaxValue;
Double minP = Double.MaxValue;
Double maxD = 0;
foreach (var item in list)
{
if (maxP < item.Perimetr)
{
maxP = item.Perimetr;
}
if (maxE < item.Elongation)
{
maxE = item.Elongation;
}
if (maxD < item.Density)
{
maxD = item.Density;
}
if (minP > item.Perimetr)
{
minP = item.Perimetr;
}
if (minE > item.Elongation)
{
minE = item.Elongation;
}
}
Double step = (maxE - minE) / (count + 1);
Double step1 = (maxP - minP) / (count + 1);
Random rand = new Random();
MyPoint[] clustCenter = new MyPoint[count];
List <Figure>[] clust = new List <Figure> [count];
MyPoint[] check = new MyPoint[count];
for (int i = 0; i < count; i++)
{
int z = rand.Next(list.Count);
clustCenter[i] = new MyPoint(list[z].Perimetr, list[z].Elongation/*Convert.ToDouble(rand.Next(Convert.ToInt32(maxP + 1))), Convert.ToDouble(rand.Next(Convert.ToInt32(maxE + 1)))*/
/* Convert.ToDouble(rand.Next(Convert.ToInt32(maxD + 1)))*/);
clust[i] = new List <Figure>();
}
//MyPoint clust2Center = new MyPoint(Convert.ToDouble(rand.Next(Convert.ToInt32(maxP + 1))), rand.NextDouble());
bool flag = true;
while (flag)
{
for (int j = 0; j < clustCenter.Count(); j++)
{
check[j] = new MyPoint(clustCenter[j]);
}
foreach (var clustItem in clust)
{
clustItem.Clear();
}
foreach (var figure in list)
{
List <Double> dist = new List <Double>();
foreach (var center in clustCenter)
{
dist.Add(center.GetDistance(figure.Perimetr, figure.Elongation /*, figure.Density-*/));
}
clust[dist.IndexOf(dist.Min())].Add(figure);
}
int i = 0;
for (int j = 0; j < count; j++)
{
clustCenter[j].NewCenter(clust[j]);
i++;
}
i = 0;
flag = false;
foreach (var center in clustCenter)
{
if (!center.Equals(check[i]))
{
flag = true;
break;
}
i++;
}
}
foreach (var center in clustCenter)
{
Console.WriteLine(center.x.ToString() + " " + center.y.ToString());
}
return(clust);
}
