public static Centroid CountDistAndAssignCentroid(Iris iris, Centroid irisSetosa, Centroid irisVersicolor, Centroid irisVerginica)
{
bool status = true;
double dist1 = 0, dist2 = 0, dist3 = 0;
dist1 = CountDist(iris, irisSetosa);
dist2 = CountDist(iris, irisVersicolor);
dist3 = CountDist(iris, irisVerginica);
if (dist1 < dist2 && dist1 < dist3)
{
return(irisSetosa);
}
else if (dist2 < dist1 && dist2 < dist3)
{
return(irisVersicolor);
}
else
{
return(irisVerginica);
}
}
public static double CalcSSE(List <Iris> listI, Centroid irisSetosa, Centroid irisVersicolor, Centroid irisVirginica)
{
double minimumSetosa = CentroidMover.CountDist(listI[0], irisSetosa);
double minimumVersicolor = CentroidMover.CountDist(listI[0], irisVersicolor);
double minimumVirginica = CentroidMover.CountDist(listI[0], irisVirginica);
foreach (Iris i in listI)
{
switch (i.Centroid.Name)
{
case ("Setosa"):
double t = CentroidMover.CountDist(i, irisSetosa);
if (minimumSetosa > t)
{
minimumSetosa = t;
}
continue;
case ("Versicolor"):
double tV = CentroidMover.CountDist(i, irisVersicolor);
if (minimumVersicolor > tV)
{
minimumVersicolor = tV;
}
continue;
case ("Virginica"):
double tVi = CentroidMover.CountDist(i, irisVirginica);
if (minimumVirginica > tVi)
{
minimumVirginica = tVi;
}
continue;
}
}
double total = Math.Pow(minimumSetosa, 2) + Math.Pow(minimumVersicolor, 2) + Math.Pow(minimumVirginica, 2);
return(total);
}
public static double CalcSSE(List <Iris> listI, Centroid irisSetosa, Centroid irisVersicolor, Centroid irisVirginica)
{
double minimumSetosa = CentroidMover.CountDist(listI[0], irisSetosa);
double minimumVersicolor = CentroidMover.CountDist(listI[0], irisVersicolor);
double minimumVirginica = CentroidMover.CountDist(listI[0], irisVirginica);
foreach (Iris i in listI)
{
if (irisSetosa.Name == i.Centroid.Name)
{
double t = CentroidMover.CountDist(i, irisSetosa);
if (minimumSetosa > t)
{
minimumSetosa = t;
}
}
else if (irisVersicolor.Name == i.Centroid.Name)
{
double tV = CentroidMover.CountDist(i, irisVersicolor);
if (minimumVersicolor > tV)
{
minimumVersicolor = tV;
}
}
else if (irisVirginica.Name == i.Centroid.Name)
{
double tVi = CentroidMover.CountDist(i, irisVirginica);
if (minimumVirginica > tVi)
{
minimumVirginica = tVi;
}
}
}
double total = Math.Pow(minimumSetosa, 2) + Math.Pow(minimumVersicolor, 2) + Math.Pow(minimumVirginica, 2);
return(total);
}
private static double CountDist(Iris iris, Centroid centroid)
{
double distance = Math.Sqrt(Math.Pow((iris.SepalL - (double)centroid.F1), 2) + Math.Pow((iris.SepalW - (double)centroid.F2), 2) + Math.Pow((iris.PetalL - (double)centroid.F3), 2) + Math.Pow((iris.PetalW - (double)centroid.F4), 2));
return(distance);
}
