//Hàm dùng để tại ra các khoảng giá trị đã rời rạc
public static void TaoBayesObject(String colName, int khoang, DataTable dt)
{
BayesObjectTableAdapter BayesObjectTA = new BayesObjectTableAdapter();
//DataSetTableAdapter dataSetTA = new DataSetTableAdapter();
//DataTable dt = dataSetTA.GetData();
decimal minValue = Convert.ToDecimal(dt.Compute("min(" + colName + ")", string.Empty));
decimal maxValue = Convert.ToDecimal(dt.Compute("max(" + colName + ")", string.Empty));
decimal giaTriMoi = Math.Round((minValue + maxValue) / khoang, 3);
decimal giaTriTrungBinhKhoang = giaTriMoi;
for (int i = 1; i <= khoang; i++)
{
String khoangRoiRac = "";
if (i == 1)
{
khoangRoiRac = "[0," + giaTriMoi.ToString("0.###") + ")";
}
else if (i == khoang)
{
khoangRoiRac = "[" + giaTriMoi.ToString("0.###") + ",+)";
}
else
{
khoangRoiRac = "[" + (giaTriMoi - giaTriTrungBinhKhoang).ToString("0.###") + ","
+ giaTriMoi.ToString("0.###") + ")";
}
BayesObjectTA.Insert(colName, khoangRoiRac, 0, "True");
BayesObjectTA.Insert(colName, khoangRoiRac, 0, "False");
if (i != khoang - 1)
{
giaTriMoi = giaTriMoi + giaTriTrungBinhKhoang;
}
}
}
private void CreateBayesObject(String colName, List <double> listInputIntervalValue)
{
BayesObjectTableAdapter bayesObjectTableAdapter = new BayesObjectTableAdapter();
for (int i = 0; i < listInputIntervalValue.Count; i++)
{
String InputIntervalValue = "";
double currentValue = listInputIntervalValue[i];
double nextValue = 0;
if (i == listInputIntervalValue.Count - 1)
{
InputIntervalValue = "[" + currentValue.ToString("0.###") + ",+)";
}
else
{
nextValue = listInputIntervalValue[i + 1];
InputIntervalValue = "[" + currentValue.ToString("0.###") + "," + nextValue.ToString("0.###") + ")";
}
bayesObjectTableAdapter.Insert(colName, InputIntervalValue, 0, TableMetaData.PositiveString);
bayesObjectTableAdapter.Insert(colName, InputIntervalValue, 0, TableMetaData.NegativeString);
}
}
private void CreateBayesObject(String colName, List<double> listInputIntervalValue)
{
BayesObjectTableAdapter bayesObjectTableAdapter = new BayesObjectTableAdapter();
for (int i = 0; i < listInputIntervalValue.Count; i++)
{
String InputIntervalValue = "";
double currentValue=listInputIntervalValue[i];
double nextValue = 0;
if (i == listInputIntervalValue.Count - 1)
InputIntervalValue = "[" + currentValue.ToString("0.###") + ",+)";
else
{
nextValue = listInputIntervalValue[i + 1];
InputIntervalValue = "[" + currentValue.ToString("0.###") + "," + nextValue.ToString("0.###") + ")";
}
bayesObjectTableAdapter.Insert(colName, InputIntervalValue, 0, TableMetaData.PositiveString);
bayesObjectTableAdapter.Insert(colName, InputIntervalValue, 0, TableMetaData.NegativeString);
}
}
