public class KMeansData {
public static DataSet<Centroid> getDefaultCentroidDataSet(ExecutionEnvironment env) {
return env.fromElements(
new Centroid(1, -31.85, -44.77),
new Centroid(2, 35.16, 17.46),
new Centroid(3, -5.16, 21.93),
new Centroid(4, -24.06, 6.81)
);
}