//Methods
/// <summary>
/// Plans set of values to be tested.
/// </summary>
/// <param name="min">Min value</param>
/// <param name="minErr">Error corresponding to min value</param>
/// <param name="max">Min value</param>
/// <param name="maxErr">Error corresponding to max value</param>
private void Replan(double min, double minErr, double max, double maxErr)
{
double stepSize = (max - min) / _settings.NumOfSteps;
double value = min;
_planIdx = 0;
for (int i = 0; i <= _settings.NumOfSteps; i++)
{
_plannedValues[i] = new ValueError {
Value = value, Error = double.NaN
};
if (i == 0 && !double.IsNaN(minErr))
{
//Error is already known
_plannedValues[i].Error = minErr;
_planIdx = 1;
}
else if (i == _settings.NumOfSteps && !double.IsNaN(maxErr))
{
//Error is already known
_plannedValues[i].Error = maxErr;
}
value += stepSize;
}
return;
}
/// <summary>
/// delete given data from a selected table
/// </summary>
public void DeleteData()
{
string table = TablesComboBox.SelectedItem.ToString();
if (CheckID(DeleteIDBox))
{
ValueError.Clear();
switch (table)
{
case "Students":
int stdid = Convert.ToInt32(DeleteIDBox.Text.ToString());
Data.RemoveItem(stdid);
break;
case "Courses":
int courseid = Convert.ToInt32(DeleteIDBox.Text.ToString());
Data.RemoveItem(courseid);
break;
case "Instructors":
int instid = Convert.ToInt32(DeleteIDBox.Text.ToString());
Data.RemoveItem(instid);
break;
case "Enrollments":
int stdEnroll = Convert.ToInt32(DeleteIDBox.Text.ToString());
Data.RemoveItem(stdEnroll);
break;
}
}
}
protected void RaiseError(ValueError error)
{
if (this._errorHandlers.Count > 0)
{
var handler = this._errorHandlers.Peek();
handler(this, new ErrorEventArg(error));
}
}
private void ViewButton_Click(object sender, EventArgs e)
{
ClearDataGridView();
if (FilterByComboBox.SelectedItem.ToString() == "None")
{
UpdateDataGridView(Data.GetAll());
}
else if (CheckID(FilterIDBox))
{
ValueError.Clear();
int id = Convert.ToInt32(FilterIDBox.Text);
DataTable dataTable = GetDataTable(id);
UpdateDataGridView(dataTable);
}
}
/// <summary>
/// returns true if the givin id is integer false otherwise
/// </summary>
/// <returns>Bool</returns>
private bool CheckID(TextBox box)
{
if (FilterIDBox.Text != "")
{
try
{
int ID = Convert.ToInt32(box.Text);
return(true);
}
catch (Exception ex)
{
ValueError.SetError(box, ex.ToString());
return(false);
}
}
else
{
ValueError.SetError(box, "ID Value is empty");
return(false);
}
}
/// <summary>
/// insert given data to a selected table
/// </summary>
private void InsertData()
{
string table = TablesComboBox.SelectedItem.ToString();
if (CheckID(InsertIDBox))
{
ValueError.Clear();
switch (table)
{
case "Students":
int stdid = Convert.ToInt32(InsertIDBox.Text.ToString());
string stdname = InsertNameBox.Text.ToString();
Data.AddItem(stdid, stdname);
break;
case "Courses":
int courseid = Convert.ToInt32(InsertIDBox.Text.ToString());
string coursename = InsertNameBox.Text.ToString();
string coursedesc = InsertCourseDescBox.Text.ToString();
int courseinst = Convert.ToInt32(InsertCourseInstBox.Text.ToString());
Data.AddItem(courseid, coursename, coursedesc, courseinst);
break;
case "Instructors":
int instid = Convert.ToInt32(InsertIDBox.Text.ToString());
string instname = InsertNameBox.Text.ToString();
Data.AddItem(instid, instname);
break;
case "Enrollments":
int courseEnroll = Convert.ToInt32(InsertIDBox.Text.ToString());
int stdEnroll = Convert.ToInt32(InsertNameBox.Text.ToString());
Data.AddItem(courseEnroll, stdEnroll);
break;
}
}
}
/// <summary>
/// Raises the ValueError event and performs custom processing</summary>
protected virtual void OnValueError()
{
ValueError.Raise(this, EventArgs.Empty);
}
assert_raises(ValueError, cval.train_test_split, range(3), range(42))
assert_raises(ValueError, cval.train_test_split, range(3), test_size = 0.6,
assert_raises(ValueError, cval.train_test_split)
public ErrorEventArg(ValueError error)
{
this.Error = error;
}
assert_raises(ValueError, cval.train_test_split, range(3), range(42))
assert_raises(ValueError, cval.train_test_split, range(3), test_size=0.6,
assert_raises(ValueError, cval.train_test_split)
