private void btnCalculatePercepron_Click(object sender, EventArgs e)
{
#region Initialize Datas From Text file
// Initialize datas from textfile
using (TextReader reader = File.OpenText(fileName))
{
listDataPoints = new List<DataPoint>();
string line;
while ((line = reader.ReadLine()) != null)
{
string[] words = line.Split('\t');
DataPoint dPointNew = new DataPoint();
// Initialize Inputs
for (int i = 0; i < words.Length - 1; i++)
{
try
{
dPointNew.ListInputs.Add(Convert.ToDouble(words[i]));
}
catch (Exception)
{
MessageBox.Show("Some inputs could not convert to double number");
return;
}
}
// Initialize Output
try
{
dPointNew.Output = Convert.ToDouble(words[words.Length-1]);
}
catch (Exception)
{
MessageBox.Show("Some inputs could not convert to double number");
return;
}
// Add datapoint to the list
listDataPoints.Add(dPointNew);
}
}
#endregion
#region STEP 2
// Initialize weight vector
// All inputs number should be same, so get the first datapoint inputs number
string[] STRWeighVector = tbInitialWeightVector.Text.Split(';');
if (STRWeighVector.Length != listDataPoints[0].ListInputs.Count)
{
MessageBox.Show("Initial weight vector size is wrong");
return;
}
WEIGHT_ARRAY = new double[STRWeighVector.Length];
// Initialize weight vector
for (int i = 0; i < STRWeighVector.Length ; i++)
{
try
{
WEIGHT_ARRAY[i] = Convert.ToDouble(STRWeighVector[i]);
}
catch (Exception)
{
MessageBox.Show("Initial weight vector must be double numbers");
}
}
// Teta
try
{
TETA = Convert.ToDouble(tbTeta.Text);
}
catch (Exception)
{
MessageBox.Show("Teta must be a double number");
}
// Set K and ERROR
K_NUMBER = 1;
ERROR = 0;
K_MAX = listDataPoints.Count;
#endregion
#region STEP 3
ERROR = 1;
int MAXLOOP;
try
{
MAXLOOP = Convert.ToInt32(tbMaxLoop.Text);
}
catch (Exception)
{
MessageBox.Show("Max Loop must be an integer number");
return;
}
int loop = 0;
while (ERROR > 0 && loop < MAXLOOP)
{
loop++;
if (loop == MAXLOOP -1)
{
MessageBox.Show("Loop number reached to maximum loop number");
return;
}
ERROR = 0;
K_NUMBER = 1;
for (int dataNumber = 0; dataNumber < listDataPoints.Count; dataNumber++)
{
// w0 * x1
// Desire output should be datapoint.output
//
DataPoint dPointProcessing = listDataPoints[dataNumber];
double sum = 0;
for (int i = 0; i < dPointProcessing.ListInputs.Count; i++)
{
sum += dPointProcessing.ListInputs[i] * WEIGHT_ARRAY[i];
}
if (Math.Sign(sum) == dPointProcessing.Output)
{
// OK
}
else
{
// Should change weigh vector with TETA
// Wi+1 = Wi + Teta(Yi - Sign(sum))*X
for (int i = 0; i < WEIGHT_ARRAY.Length; i++)
{
WEIGHT_ARRAY[i] = WEIGHT_ARRAY[i] + TETA * (dPointProcessing.Output - Math.Sign(sum)) * dPointProcessing.ListInputs[i];
}
// Calculate Error
ERROR = ERROR + (double)1 / 2 * (Math.Pow(dPointProcessing.Output - Math.Sign(sum), 2));
}
// SET K = K+1
K_NUMBER += 1;
}
}
#endregion
// Write result
string resultWeightVectorStr = "";
for (int i = 0; i < WEIGHT_ARRAY.Length; i++)
{
if (i == WEIGHT_ARRAY.Length - 1)
{
resultWeightVectorStr += WEIGHT_ARRAY[i].ToString("N2");
}
else
{
resultWeightVectorStr += WEIGHT_ARRAY[i].ToString("N2") + " ; ";
}
}
tbResultWeightVector.Text = resultWeightVectorStr;
groupBox1.Visible = true;
}
private void btnCalculatePercepron_Click(object sender, EventArgs e)
{
#region Initialize Datas From Text file
// Initialize datas from textfile
using (TextReader reader = File.OpenText(fileName))
{
listDataPoints = new List <DataPoint>();
string line;
while ((line = reader.ReadLine()) != null)
{
string[] words = line.Split('\t');
DataPoint dPointNew = new DataPoint();
// Initialize Inputs
for (int i = 0; i < words.Length - 1; i++)
{
try
{
dPointNew.ListInputs.Add(Convert.ToDouble(words[i]));
}
catch (Exception)
{
MessageBox.Show("Some inputs could not convert to double number");
return;
}
}
// Initialize Output
try
{
dPointNew.Output = Convert.ToDouble(words[words.Length - 1]);
}
catch (Exception)
{
MessageBox.Show("Some inputs could not convert to double number");
return;
}
// Add datapoint to the list
listDataPoints.Add(dPointNew);
}
}
#endregion
#region STEP 2
// Initialize weight vector
// All inputs number should be same, so get the first datapoint inputs number
string[] STRWeighVector = tbInitialWeightVector.Text.Split(';');
if (STRWeighVector.Length != listDataPoints[0].ListInputs.Count)
{
MessageBox.Show("Initial weight vector size is wrong");
return;
}
WEIGHT_ARRAY = new double[STRWeighVector.Length];
// Initialize weight vector
for (int i = 0; i < STRWeighVector.Length; i++)
{
try
{
WEIGHT_ARRAY[i] = Convert.ToDouble(STRWeighVector[i]);
}
catch (Exception)
{
MessageBox.Show("Initial weight vector must be double numbers");
}
}
// Teta
try
{
TETA = Convert.ToDouble(tbTeta.Text);
}
catch (Exception)
{
MessageBox.Show("Teta must be a double number");
}
// Set K and ERROR
K_NUMBER = 1;
ERROR = 0;
K_MAX = listDataPoints.Count;
#endregion
#region STEP 3
ERROR = 1;
int MAXLOOP;
try
{
MAXLOOP = Convert.ToInt32(tbMaxLoop.Text);
}
catch (Exception)
{
MessageBox.Show("Max Loop must be an integer number");
return;
}
int loop = 0;
while (ERROR > 0 && loop < MAXLOOP)
{
loop++;
if (loop == MAXLOOP - 1)
{
MessageBox.Show("Loop number reached to maximum loop number");
return;
}
ERROR = 0;
K_NUMBER = 1;
for (int dataNumber = 0; dataNumber < listDataPoints.Count; dataNumber++)
{
// w0 * x1
// Desire output should be datapoint.output
//
DataPoint dPointProcessing = listDataPoints[dataNumber];
double sum = 0;
for (int i = 0; i < dPointProcessing.ListInputs.Count; i++)
{
sum += dPointProcessing.ListInputs[i] * WEIGHT_ARRAY[i];
}
if (Math.Sign(sum) == dPointProcessing.Output)
{
// OK
}
else
{
// Should change weigh vector with TETA
// Wi+1 = Wi + Teta(Yi - Sign(sum))*X
for (int i = 0; i < WEIGHT_ARRAY.Length; i++)
{
WEIGHT_ARRAY[i] = WEIGHT_ARRAY[i] + TETA * (dPointProcessing.Output - Math.Sign(sum)) * dPointProcessing.ListInputs[i];
}
// Calculate Error
ERROR = ERROR + (double)1 / 2 * (Math.Pow(dPointProcessing.Output - Math.Sign(sum), 2));
}
// SET K = K+1
K_NUMBER += 1;
}
}
#endregion
// Write result
string resultWeightVectorStr = "";
for (int i = 0; i < WEIGHT_ARRAY.Length; i++)
{
if (i == WEIGHT_ARRAY.Length - 1)
{
resultWeightVectorStr += WEIGHT_ARRAY[i].ToString("N2");
}
else
{
resultWeightVectorStr += WEIGHT_ARRAY[i].ToString("N2") + " ; ";
}
}
tbResultWeightVector.Text = resultWeightVectorStr;
groupBox1.Visible = true;
}
