public static void Main(string[] args)
{
try
{
/*bool exists = File.Exists("Data/iris.arff");
* using (ArffReader reader = new ArffReader(@"Data/iris.arff"))
* {
* ArffRecord record;
* while ((record = reader.ReadNextRecord()) != null)
* {
* for (int valueIndex = 0; valueIndex < record.Values.Length; valueIndex++)
* {
* var val = record.Values[valueIndex];
* var attr = reader.Attributes[valueIndex];
* Console.WriteLine("{0}: {1}", attr.Name, val.NominalValueIndex >= 0 ? attr.NominalValues[val.NominalValueIndex] : "?");
* }
* Console.WriteLine();
* }
* }*/
string line;
int counter = 0;
using (var stream = File.OpenRead("Data/iris.arff"))
{
using (var reader = new StreamReader(stream))
{
while ((line = reader.ReadLine()) != null)
{
//put every ten tuple in thetest data
if (counter % 10 == 0)
{
testData.Add(line.Split(','));
}
else
{
trainData.Add(line.Split(','));
}
counter++;
}
}
}
//11 for more precise
Console.WriteLine("How big is k:");
var k = int.Parse(Console.ReadLine());
var knn = new Knn(trainData, k);
foreach (var item in testData)
{
knn.identifyClass(item);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
//Sắp xếp ArrKnn giảm dần theo Distance
private void Sort()
{
Knn tmp = new Knn();
for (int i = 0; i < mArrKnn.Length - 1; i++)
{
for (int j = i + 1; j < mArrKnn.Length; j++)
{
if (mArrKnn[i].Distance < mArrKnn[j].Distance)
{
tmp = mArrKnn[i];
mArrKnn[i] = mArrKnn[j];
mArrKnn[j] = tmp;
}
}
}
}