public void TestClusterAlgorithmOnExample()
{
ClusterData data = new ClusterData(GetTestData(), new string[] { "X", "Y" });
ClusterAlgorithmOptions options = new ClusterAlgorithmOptions(5);
var result = KmeansClusterAlgorithm.Analyze(data, options);
Assert.IsTrue(result.ClusterAssignment.Length > 0);
Trace.WriteLine($"Iterations: {result.Iterations}");
Trace.WriteLine(result.PrintCsvResult());
}
public void TestBigSet()
{
int cols = 5;
int rows = 5000;
string[] attributes = new string[cols];
for (int i = 0; i < cols; i++)
{
attributes[i] = "Col_" + i.ToString();
}
ClusterAlgorithmOptions options = new ClusterAlgorithmOptions(3, true);
ClusterData data = new ClusterData(GetRandomDataSet(rows, cols, 2000), attributes);
ClusterResult result = KmeansClusterAlgorithm.Analyze(data, options);
Assert.IsTrue(result.Iterations > 0);
Trace.WriteLine($"Iterations: {result.Iterations}");
Trace.WriteLine(result.PrintCsvResult());
}
private async void ExportButton_Click(object sender, RoutedEventArgs e)
{
ClusterButton.IsEnabled = false;
ClusterButton.IsEnabled = false;
LoadCsvButton.IsEnabled = false;
BusyIndication.IsActive = true;
int clusters = (int)(ClusterCountRange.UpperValue);
if (MessageBox.Show($"Run with {clusters} Clusters?", "Get Results", MessageBoxButton.YesNo, MessageBoxImage.Question)
== MessageBoxResult.Yes)
{
int runs = (int)(RandomRuns.Value.Value);
bool normalize = NormalizeSwitch.IsChecked.Value;
var analysis = await Task.Run(() => ClusterSolver.Cluster(clusterData, clusters, clusters, runs, normalize));
var seed = analysis[0].BestSeed;
var options = new ClusterAlgorithmOptions(clusters, seed, normalize);
var result = await Task.Run(() => KmeansClusterAlgorithm.Analyze(clusterData, options));
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "Csv files (*.csv)|*.csv|Text files (*.txt)|*.txt";
if (saveFileDialog.ShowDialog() == true)
{
using (var writer = new StreamWriter(File.Create(saveFileDialog.FileName)))
{
string csv = result.PrintCsvResult();
writer.Write(csv);
}
}
}
ClusterButton.IsEnabled = true;
ClusterButton.IsEnabled = true;
LoadCsvButton.IsEnabled = true;
BusyIndication.IsActive = false;
}