private static IList<IList<IAgent>> clusteringUsingWeka(
final IScope scope,
final Clusterer clusterer,
final IList<String> attributes,
final IAddressableContainer<Integer, IAgent, Integer, IAgent> agents)
throws GamaRuntimeException {
Instances dataset = convertToInstances(scope, attributes, agents);
try {
clusterer.buildClusterer(dataset);
IList<IList<IAgent>> groupes = GamaListFactory.create(Types.LIST.of(Types.AGENT));
for (int i = 0; i < clusterer.numberOfClusters(); i++) {
groupes.add(GamaListFactory.<IAgent>create(Types.AGENT));
}
for (int i = 0; i < dataset.numInstances(); i++) {
Instance inst = dataset.instance(i);
int clusterIndex = -1;
clusterIndex = clusterer.clusterInstance(inst);
IList<IAgent> groupe = groupes.get(clusterIndex);
groupe.add(agents.get(scope, i));
}
return groupes;
} catch (Exception e) {
return null;
}
}
/**
* Zwraca tylko te instancje, kt??re nale???? do klastra o podanym numerze.
*
* @param numClust Numer klastra
* @return Instancje nale????ce do podanego klastra.
*/
public Instances getClusterInstances(int numClust) {
Instances inst = new Instances(data);
inst.clear();
try {
for (int i = 0; i < data.numInstances(); ++i) {
if (clusterer.clusterInstance(data.instance(i)) == numClust) {
inst.add(data.instance(i));
}
}
} catch (Exception e) {
e.printStackTrace();
}
return inst;
}