public void BubbleSortByParam(int index_of_param, Parametr param)
{
if ((param.Type == TypeParametr.Real) || (param.Type == TypeParametr.Int))
{
for (int i = 0; i < Rows.Count; i++)
{
for (int j = i + 1; j < Rows.Count; j++)
{
if (Convert.ToDouble(Rows.ElementAt(j)[index_of_param].Value, UsCulture) < Convert.ToDouble(Rows.ElementAt(i)[index_of_param].Value, UsCulture))
{
var temp = Rows[i];
Rows[i] = Rows[j];
Rows[j] = temp;
}
}
}
}
else
{
for (int i = 0; i < Rows.Count; i++)
{
for (int j = i + 1; j < Rows.Count; j++)
{
if (String.Compare(Rows.ElementAt(j)[index_of_param].Value,Rows.ElementAt(i)[index_of_param].Value) < 0)
{
var temp = Rows[i];
Rows[i] = Rows[j];
Rows[j] = temp;
}
}
}
}
}
public Parametr GetOneParametrWithRequest(String req)
{
Parametr res = null;
SQLiteCommand cmd = new SQLiteCommand(conn);
cmd.Transaction = trans;
cmd.CommandText = req;
try
{
SQLiteDataReader r = cmd.ExecuteReader();
string line = String.Empty;
res = new Parametr();
Parametr param;
while (r.Read())
{
param = new Parametr();
param.ID = int.Parse(string.Format("{0}", r["ID"]));
param.Number = int.Parse(string.Format("{0}", r["NUMBER"]));
param.Range = r["RANGE"].ToString();
param.Type = (TypeParametr)Enum.Parse(typeof(TypeParametr), string.Format("{0}", r["TYPE"]));
param.TaskID = int.Parse(string.Format("{0}", r["TASK_ID"]));
param.Name = r["NAME"].ToString();
res = param;
}
r.Close();
}
catch (SQLiteException ex)
{
Console.WriteLine(ex.Message);
return(null);
}
return(res);
}
private void UpdateParam(Parametr newParam)
{
String sqlReqStr = "UPDATE PARAM SET NAME='" + newParam.Name + "',TYPE='" + ((int)newParam.Type).ToString() + "', " +
"RANGE='" + newParam.Range + "', NUMBER='" + newParam.Number + "' " +
"WHERE TASK_ID='" + newParam.TaskID + "' and ID='" + newParam.ID + "';";
sqlManager.SendUpdateRequest(sqlReqStr);
}
public Parametr GetOneParametrWithRequest(String req)
{
Parametr res = null;
SQLiteCommand cmd = new SQLiteCommand(conn);
cmd.Transaction = trans;
cmd.CommandText = req;
try
{
SQLiteDataReader r = cmd.ExecuteReader();
string line = String.Empty;
res = new Parametr();
Parametr param;
while (r.Read())
{
param = new Parametr();
param.ID = int.Parse(string.Format("{0}", r["ID"]));
param.Number = int.Parse(string.Format("{0}", r["NUMBER"]));
param.Range = r["RANGE"].ToString();
param.Type = (TypeParametr)Enum.Parse(typeof(TypeParametr), string.Format("{0}", r["TYPE"]));
param.TaskID = int.Parse(string.Format("{0}", r["TASK_ID"]));
param.Name = r["NAME"].ToString();
res = param;
}
r.Close();
}
catch (SQLiteException ex)
{
Console.WriteLine(ex.Message);
return null;
}
return res;
}
private void UpdateParam(Parametr newParam)
{
String sqlReqStr = "UPDATE PARAM SET NAME='" + newParam.Name + "',TYPE='" + ((int)newParam.Type).ToString() + "', " +
"RANGE='" + newParam.Range + "', NUMBER='" + newParam.Number + "' " +
"WHERE TASK_ID='" + newParam.TaskID + "' and ID='" + newParam.ID + "';";
sqlManager.SendUpdateRequest(sqlReqStr);
}
private void parametersDataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (CreateNewTask)
{
//если создается новая задача
if (e.ColumnIndex == 4 && e.RowIndex == CountParams - 1)
{
bool fullContent = true;
foreach (DataGridViewRow row in parametersDataGridView.Rows)
{
for (int i = 0; i < 4; i++)
{
if (row.Cells[i].Value.ToString() == "")
{
fullContent = false;
}
}
}
if (fullContent)
{
//отсылаем в бд, закрываем форму, уведомляем о успешном создании
foreach (DataGridViewRow row in parametersDataGridView.Rows)
{
createNewParam(row.Cells[0].Value.ToString(), (TypeParametr)Enum.Parse(typeof(TypeParametr), row.Cells[1].Value.ToString()), row.Cells[2].Value.ToString(), row.Cells[3].Value.ToString());
}
SuccessCreate = true;
this.Close();
}
}
if (e.ColumnIndex == 4 && e.RowIndex == CountParams - 2)
{
this.Close();
}
}
else
{
//если хотим обновить
if (!ChangeParam)
{
if (e.ColumnIndex == 4)
{
Parametr param = arrParams[e.RowIndex];
parametersDataGridView.Rows[e.RowIndex].ReadOnly = false;
parametersDataGridView.Rows[e.RowIndex].Cells[4].Value = "Сохранить";
ChangeParam = true;
CurChangeParamRow = e.RowIndex;
}
}
else
{
if (e.ColumnIndex == 4 && e.RowIndex == CurChangeParamRow)
{
//Save changes
bool fullContent = true;
for (int i = 0; i < 3; i++)
{
if (parametersDataGridView.Rows[CurChangeParamRow].Cells[i].Value.ToString() == "")
{
fullContent = false;
}
}
if (fullContent)
{
ChangeParam = false;
Parametr curParam = arrParams[CurChangeParamRow];
curParam.Name = parametersDataGridView.Rows[CurChangeParamRow].Cells[0].Value.ToString();
curParam.Range = parametersDataGridView.Rows[CurChangeParamRow].Cells[2].Value.ToString();
curParam.Number = int.Parse(parametersDataGridView.Rows[CurChangeParamRow].Cells[3].Value.ToString());
curParam.Type = (TypeParametr)Enum.Parse(typeof(TypeParametr), (parametersDataGridView.Rows[CurChangeParamRow].Cells[1].Value.ToString()));
UpdateParam(curParam);
parametersDataGridView.Rows.Clear();
ShowAllParams();
}
}
}
}
}
public void FindBetterParametr(EducationTable education_table,ref int index_of_parametr,ref string best_value_for_split, ref Parametr _param)
{
index_of_parametr = 0;
best_value_for_split = "";
VeryfiedClassInfo[] leftClassInf = ClassInfoInit();
VeryfiedClassInfo[] rightClassInf = ClassInfoInit();
Parametr param;
double giniValue = -100000;
for(int index = 1; index < education_table.ParameterCount; index++)
{
param = sqlManager.GetOneParametrWithRequest("SELECT * FROM PARAM WHERE ID ='" + education_table.Rows.ElementAt(1)[index].ParametrID + "'");
education_table.BubbleSortByParam(index, param);
if ((param.Type == TypeParametr.Real) || (param.Type == TypeParametr.Int))
{
double average = 0;
for (int prevRowInd = 1, nextRowInd = 2; nextRowInd < education_table.Rows.Count; prevRowInd++, nextRowInd++)
{
average = (Convert.ToDouble(education_table.Rows.ElementAt(prevRowInd)[index].Value, UsCulture) + Convert.ToDouble(education_table.Rows.ElementAt(nextRowInd)[index].Value, UsCulture)) / 2.0;
for (int i = 0; i < education_table.Rows.Count; i++)
{
if (Convert.ToDouble(education_table.Rows.ElementAt(i)[index].Value, UsCulture) <= average)
{
foreach (VeryfiedClassInfo clinf in rightClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
else
{
foreach (VeryfiedClassInfo clinf in leftClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
}
double newGiniValue = GiniSplitCalc(leftClassInf, rightClassInf);
if (newGiniValue > giniValue)
{
giniValue = newGiniValue;
index_of_parametr = index;
best_value_for_split = average.ToString(UsCulture);
_param = param;
}
for (int i = 0; i < leftClassInf.Length; i++)
{
leftClassInf[i].number_of_checked = 0;
rightClassInf[i].number_of_checked = 0;
}
}
}
else
{
//param.Range
int number_of_var = 0;
for (int i = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
number_of_var++;
}
String[] variables = new String[number_of_var + 1];
for (int i = 0, j = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
{
j++;
continue;
}
if (param.Range[i] != ' ')
variables[j]+= param.Range[i];
}
for (int j = 0; j < number_of_var; j++)
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
if (education_table.Rows.ElementAt(i)[index].Value == variables[j])
{
foreach (VeryfiedClassInfo clinf in rightClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
else
{
foreach (VeryfiedClassInfo clinf in leftClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
}
double newGiniValue = GiniSplitCalc(leftClassInf, rightClassInf);
if (newGiniValue > giniValue)
{
giniValue = newGiniValue;
index_of_parametr = index;
best_value_for_split = variables[j];
_param = param;
}
for (int i = 0; i < leftClassInf.Length; i++)
{
leftClassInf[i].number_of_checked = 0;
rightClassInf[i].number_of_checked = 0;
}
}
}
}
}
public void treeBuilding(EducationTable education_table, TreeNode tree_node)
{
VeryfiedClassInfo[] thisClassInfo = ClassInfoInit();
for (int i = 0; i < education_table.Rows.Count; i++)
{
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
int k = 0;
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.number_of_checked >= 1)
{
k++;
}
}
if (k >= 2)
{
tree_node.is_leaf = false;
int index_of_parametr = 0;
string best_value_for_split = "";
Parametr param = new Parametr();
FindBetterParametr(education_table, ref index_of_parametr, ref best_value_for_split, ref param);
tree_node.rule = new Rule();
tree_node.rule.index_of_param = index_of_parametr;
tree_node.rule.value = best_value_for_split;
tree_node.left_child = new TreeNode();
tree_node.right_child = new TreeNode();
EducationTable left_table = new EducationTable();
EducationTable right_table = new EducationTable();
SplitEducationTable(education_table, tree_node.rule, param, ref left_table, ref right_table);
treeBuilding(left_table, tree_node.left_child);
treeBuilding(right_table, tree_node.right_child);
}
else
{
tree_node.is_leaf = true;
tree_node.rule = new Rule();
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.number_of_checked > 0)
{
tree_node.rule.value = clinf.class_name;
}
}
}
}
public void SplitEducationTable(EducationTable education_table,Rule split_rule,Parametr param, ref EducationTable left_table, ref EducationTable right_table)
{
if ((param.Type == TypeParametr.Real) || (param.Type == TypeParametr.Int))
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
double curVal = Convert.ToDouble(education_table.Rows.ElementAt(i)[split_rule.index_of_param].Value, UsCulture);
double splitVal = Convert.ToDouble(split_rule.value, UsCulture);
if (curVal <= splitVal)
{
right_table.Rows.Add(education_table.Rows.ElementAt(i));
}
else
{
left_table.Rows.Add(education_table.Rows.ElementAt(i));
}
}
right_table.ParameterCount = education_table.ParameterCount;
left_table.ParameterCount = education_table.ParameterCount;
}
else
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
String curVal = education_table.Rows.ElementAt(i)[split_rule.index_of_param].Value;
String splitVal = split_rule.value;
if (curVal == splitVal)
{
right_table.Rows.Add(education_table.Rows.ElementAt(i));
}
else
{
left_table.Rows.Add(education_table.Rows.ElementAt(i));
}
}
right_table.ParameterCount = education_table.ParameterCount;
left_table.ParameterCount = education_table.ParameterCount;
}
}