public delegate double Metryka(Obiekt x, Obiekt y);
public static double Klasyfikacja(List<Obiekt> OB, Obiekt nowy, int metr, int knn){
List<double> KeyList = new List<double>();
Dictionary<double, double> dictionary = new Dictionary<double, double>();
foreach (Obiekt POB in OB){
if (KeyList.IndexOf(POB.klasa) == -1)
KeyList.Add(POB.klasa);
}
Metryka metryka = new Metryka(Metryki.Logarytmiczna);
if(metr == 1) metryka = new Metryka(Metryki.Logarytmiczna);
if (metr == 2) metryka = new Metryka(Metryki.Manhattan);
if (metr == 3) metryka = new Metryka(Metryki.Czybyczewa);
double wynik = 0;
double value = -1;
foreach (double key in KeyList)
{
double tmp = 0;
List<double> doubleList = new List<double>();
foreach (Obiekt x in OB)
{
if (x.klasa == key && x != nowy)
doubleList.Add(metryka(x, nowy));
}
doubleList.Sort();
for (int index = 0; index < knn; ++index)
tmp += doubleList[index];
dictionary.Add(key, tmp);
}
foreach (KeyValuePair<double, double> keyValuePair in dictionary)
{
double tmp = -1;
if (value == -1)
{
value = keyValuePair.Value;
wynik = keyValuePair.Key;
}
else if (keyValuePair.Value == value)
tmp = 1;
else if (keyValuePair.Value < value)
{
value = keyValuePair.Value;
wynik = keyValuePair.Key;
tmp = -1;
}
}
return wynik;
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