public void CountMeanOfNode_CountCorrectMean()
{
Params.inputDataDimension = 3;
Node node = new Node(1, 1, 0.0, 0.0, "");
// cluster 1
ClusterX newClusterX1 = new ClusterX(node);
newClusterX1.Items.Add(new Vector(new double[] { 1, 2, 3 }, new double[] { 1, -2, 3 }));
newClusterX1.Items.Add(new Vector(new double[] { 2, 3, 4 }, new double[] { 2, 3, 4 }));
newClusterX1.Items.Add(new Vector(new double[] { 3, 4, 5 }, new double[] { 3, 4, 5 }));
newClusterX1.Mean = new Vector(new double[] { 1, 2, 3 });
node.ClustersX.Add(newClusterX1);
ClusterPair clusterPair1 = new ClusterPair();
clusterPair1.X = newClusterX1;
newClusterX1.SetClusterPair(clusterPair1);
node.ClusterPairs.Add(clusterPair1);
node.CountMeanAndVarianceMDF();
node.CountOfSamples = 4;
node.UpdateMeanAndVarianceMdf(new Vector(new double[] { 4, 5, 6 }, new double[] { 4, 5, 6 }));
node.CountOfSamples = 5;
node.UpdateMeanAndVarianceMdf(new Vector(new double[] { 5, 6, -7 }, new double[] { 5, 6, -7 }));
Assert.AreEqual(node.VarianceMDF[0], 2.5);
Assert.AreEqual(node.VarianceMDF[1], 9.7);
Assert.AreEqual(node.VarianceMDF[2], 27.7);
}
