public VeryfiedClassInfo[] ClassInfoInit()
{
Parametr param = sqlManager.GetOneParametrWithRequest("SELECT * FROM PARAM WHERE( NUMBER = '0' AND TASK_ID = (SELECT TASK_ID FROM SELECTION WHERE NAME = '" + tvTaskSelections.SelectedNode.Text + "'))");
int number_of_out_par = 1;
for (int i = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
number_of_out_par++;
}
VeryfiedClassInfo[] newClassInfo = new VeryfiedClassInfo[number_of_out_par];
for (int i = 0; i < number_of_out_par; i++)
{
newClassInfo[i] = new VeryfiedClassInfo();
}
for (int i = 0, j = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
{
j++;
continue;
}
if(param.Range[i] != ' ')
newClassInfo[j].class_name += param.Range[i];
}
return newClassInfo;
}
public VeryfiedClassInfo[] ClassInfoInit()
{
Parametr param = sqlManager.GetOneParametrWithRequest("SELECT * FROM PARAM WHERE( NUMBER = '0' AND TASK_ID = (SELECT TASK_ID FROM SELECTION WHERE NAME = '" + tvTaskSelections.SelectedNode.Text + "'))");
int number_of_out_par = 1;
for (int i = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
{
number_of_out_par++;
}
}
VeryfiedClassInfo[] newClassInfo = new VeryfiedClassInfo[number_of_out_par];
for (int i = 0; i < number_of_out_par; i++)
{
newClassInfo[i] = new VeryfiedClassInfo();
}
for (int i = 0, j = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
{
j++;
continue;
}
if (param.Range[i] != ' ')
{
newClassInfo[j].class_name += param.Range[i];
}
}
return(newClassInfo);
}
public double GiniSplitCalc(VeryfiedClassInfo[] leftClassInf, VeryfiedClassInfo[] rightClassInf)
{
double res = 0;
int examplCntLeft = 0, examplCntRight = 0;
for (int i = 0; i < leftClassInf.Length; i++)
{
examplCntLeft += leftClassInf[i].number_of_checked;
examplCntRight += rightClassInf[i].number_of_checked;
}
for (int i = 0; i < leftClassInf.Length; i++)
{
res += ((Math.Pow(leftClassInf[i].number_of_checked, 2) / examplCntLeft) + (Math.Pow(rightClassInf[i].number_of_checked, 2) / examplCntRight));
}
return res;
}
