/// <summary> /// Perform the example. /// </summary> public void Run() { // read the iris data from the resources Assembly assembly = Assembly.GetExecutingAssembly(); var res = assembly.GetManifestResourceStream("AIFH_Vol1.Resources.iris.csv"); // did we fail to read the resouce if (res == null) { Console.WriteLine("Can't read iris data from embedded resources."); return; } // load the data var istream = new StreamReader(res); DataSet ds = DataSet.Load(istream); istream.Close(); // perform the cluster IList<BasicData> observations = ds.ExtractUnsupervisedLabeled(4); KMeansClustering kmeans = new KMeansClustering(3); kmeans.InitForgy(observations); int iterations = kmeans.Iteration(1000); Console.WriteLine("Finished after " + iterations + " iterations."); for (int i = 0; i < kmeans.K; i++) { Cluster cluster = kmeans.Clusters[i]; Console.WriteLine("* * * Cluster #" + i); foreach (BasicData d in cluster.Observations) { Console.WriteLine(d.ToString()); } } }
public void TestClusterForgy() { var kmeans = new KMeansClustering(4) {RandomGeneration = new BasicGenerateRandom(22)}; kmeans.InitForgy(GetDataSet()); int iterations = kmeans.Iteration(1000); Assert.AreEqual(2, iterations); Cluster cluster1 = kmeans.Clusters[0]; Cluster cluster2 = kmeans.Clusters[1]; Cluster cluster3 = kmeans.Clusters[2]; Cluster cluster4 = kmeans.Clusters[3]; Assert.AreEqual(3, cluster1.Observations.Count); Assert.AreEqual(3, cluster2.Observations.Count); Assert.AreEqual(3, cluster3.Observations.Count); Assert.AreEqual(3, cluster4.Observations.Count); }
public void TestMaxClusters() { var kmeans = new KMeansClustering(12); kmeans.RandomGeneration = new BasicGenerateRandom(22); kmeans.InitRandom(GetDataSet()); int iterations = kmeans.Iteration(1000); Assert.AreEqual(1, iterations); }
public void TestEarlyIteration() { var kmeans = new KMeansClustering(3); kmeans.Iteration(); }