/**
* Gets the current settings of SimpleKMeans.
*
* @return an array of strings suitable for passing to setOptions()
*/
public String[] getOptions() {
ArrayList<String> options = new ArrayList<String>();
options.add("-I");
options.add("" + getMaxIterations());
options.add("-min");
options.add("" + getMinNumClusters());
options.add("-max");
options.add("" + getMaxNumClusters());
options.add("-restarts");
options.add("" + getRestarts());
if (isManuallySelectNumClusters()) {
options.add("-manual");
}
if (getInitializeUsingKMeansPlusPlusMethod()) {
options.add("-P");
}
if (isPrintDebug()) {
options.add("-debug");
}
options.add("-A");
options.add(
(distanceFunction.getClass().getName()
+ " "
+ Utils.joinOptions(distanceFunction.getOptions()))
.trim());
return (String[]) options.toArray(new String[options.size()]);
}
/**
* Ustawia w??asn?? funkcj?? obliczaj??c?? odleg??o???? mi??dzy klastrami.
*
* @param distanceFunction Obiekt z funkcj?? dystansu.
*/
public void setDistanceFunction(DistanceFunction distanceFunction) {
this.instancesForDistanceFunction = distanceFunction.getInstances().toString();
this.attributeIndicesForDistanceFunction = distanceFunction.getAttributeIndices();
this.invertSelectionForDistanceFunction = distanceFunction.getInvertSelection();
this.optionsForDistanseFunction = distanceFunction.getOptions().clone();
// this.distanceFunction = distanceFunction;
}
/**
* Pobiera funkcje odleglosci, ktora jest aktualnie w uzyciu.
*
* @return Obiekt zawierajacy m.in. funkcje dystansu, wszystkie instancje, a takze pozwalajacy na
* obliczenie odleglosci miedzy poszczegolnymi instancjami.
*/
public DistanceFunction getDistanceFunction() {
DistanceFunction d = new EuclideanDistance();
d.setAttributeIndices(attributeIndicesForDistanceFunction);
BufferedReader reader = new BufferedReader(new StringReader(instancesForDistanceFunction));
ArffReader arff = null;
try {
arff = new ArffReader(reader);
} catch (IOException e) {
e.printStackTrace();
}
d.setInstances(arff.getData());
d.setInvertSelection(invertSelectionForDistanceFunction);
return d;
}
