public Domain[] split() {
Domain[] splitDomain = new Domain[getNumCategories()];
for (int i = 0; i < getNumCategories(); i++) splitDomain[i] = new Domain();
for (Vector v : attributesAndCategory) {
int index = (int) v.last();
Domain d = splitDomain[index - 1];
d.addVector(v);
}
return splitDomain;
}
public Domain[] split(int attribute, int numattr) {
Domain[] splitDomain = new Domain[numattr];
for (int i = 0; i < numattr; i++) splitDomain[i] = new Domain();
for (Vector v : attributesAndCategory) {
int index = (int) v.get(attribute);
Domain d = splitDomain[index - 1];
d.addVector(v);
}
return splitDomain;
}
public Domain[] split(int numFolds) {
if (numFolds == 0) {
numFolds = 1;
} else if (numFolds == -1) {
numFolds = attributesAndCategory.size() - 1;
}
Domain[] splitDomain = new Domain[numFolds];
for (int i = 0; i < numFolds; i++) splitDomain[i] = new Domain();
for (int i = 0; i < attributesAndCategory.size(); i++) {
Domain d = splitDomain[i % numFolds];
d.addVector(attributesAndCategory.get(i));
}
return splitDomain;
}