private void insertRow(int index, Customer cus)
{
index = index + 1;
string[] row = new string[7];
row[0] = index + "";
row[1] = cus.getName();
row[2] = cus.getAge() + "";
row[3] = cus.getGender() + "";
row[4] = cus.getIncoming() + "";
row[5] = cus.getNumcard() + "";
row[6] = cus.getResponse() + "";
dataGrid.Rows.Add(row);
}
private void insertRow(int index, Customer cus)
{
index = index + 1;
string[] row = new string[7];
row[0] = index + "";
row[1] = cus.getName();
row[2] = cus.getAge() + "";
row[3] = cus.getGender() + "";
row[4] = cus.getIncoming() + "";
row[5] = cus.getNumcard() + "";
row[6] = cus.getResponse() + "";
dataGrid.Rows.Add(row);
}
public void setResponse(Customer cus)
{
//normalize cus
Normalize ncus = new Normalize(cus, maxAge, maxIncome, maxNumCard);
//calculate all distances
for (int i = 0; i < this.totalTrainset; i++)
{
distances[i] = new Distance();
distances[i].distance = 0;
distances[i].index = i;
//normalize element
Normalize tmp = new Normalize(this.trainset[i], maxAge, maxIncome, maxNumCard);
//distance between two age normalized
distances[i].distance = distances[i].distance + getDistance(ncus.age, tmp.age);
//distance between two gender
distances[i].distance = distances[i].distance + getDistance(cus.getGender(), this.trainset[i].getGender());
//distance between two incoming normalized
distances[i].distance = distances[i].distance + getDistance(ncus.incoming, tmp.incoming);
//distance between two number of card normalized
distances[i].distance = distances[i].distance + getDistance(ncus.numCard, tmp.numCard);
}// end loop
//sort
for (int i = 0; i < totalTrainset - 1; i++)
{
for (int j = i + 1; j < totalTrainset; j++)
{
if (distances[i].distance > distances[j].distance)
{
Distance tmp = distances[i];
distances[i] = distances[j];
distances[j] = tmp;
} //swap
} //end j loop
} //end i loop
//select k nearest neighbor
int yesCount = 0;
int noCount = 0;
for (int i = 0; i < kNN; i++)
{
Customer tmp = trainset[distances[i].index];
if (tmp.getResponse() == 0)
{
noCount = noCount + 1;
}
else if (tmp.getResponse() == 1)
{
yesCount = yesCount + 1;
}
}
//set response value for unknown customer
if (yesCount > noCount)
{
cus.setResponse(1);
}
else if (yesCount < noCount)
{
cus.setResponse(0);
}
}
