/**
* Constructs a vector of single-attribute SplitterBuilders to match the given ExampleDescription.
*/
public Vector<SplitterBuilder> build(
ExampleDescription exDesc,
int[] attr,
boolean usePolicy,
Configuration config,
Booster booster)
throws IncompAttException {
// attribute class templates
RealAttribute realAttribute = new RealAttribute(0.0);
DiscreteAttribute discreteAttribute = new DiscreteAttribute(0);
SetAttribute setAttribute = new SetAttribute();
IntegerAttribute integerAttribute = new IntegerAttribute();
Vector<SplitterBuilder> retval = new Vector<SplitterBuilder>();
AttributeDescription[] attrDesc = exDesc.getAttributes();
int noOfAtt = attr.length;
SplitterBuilder tmpSB = null;
// check each attribute to make sure that we are ignoring attributes when
// necessary
for (int i = 0; i < noOfAtt; i++) {
if (!attrDesc[attr[i]].isIgnored()) {
Class<?> attributeClass = attrDesc[attr[i]].getAttributeClass();
if (attributeClass.equals(realAttribute.getClass())) {
tmpSB =
new InequalitySplitterBuilder(
attr[i], booster, new AttributeDescription[] {attrDesc[attr[i]]});
} else if (attributeClass.equals(integerAttribute.getClass())) {
tmpSB =
new InequalitySplitterBuilder(
attr[i], booster, new AttributeDescription[] {attrDesc[attr[i]]});
} else if (attributeClass.equals(discreteAttribute.getClass())) {
tmpSB =
new EqualitySplitterBuilder(
attr[i], booster, new AttributeDescription[] {attrDesc[attr[i]]});
} else if (attributeClass.equals(setAttribute.getClass())) {
tmpSB =
SetSplitterBuilder.newSplitterBuilder(
attr[i], booster, textAbstain, new AttributeDescription[] {attrDesc[attr[i]]});
} else {
throw new IncompAttException(
"Trying to build SplitterBuilders vector but cannot identify attribute:",
attr[i],
attributeClass);
}
Monitor.log(
"attribute " + attr[i] + " class is:" + attributeClass, Monitor.LOG_LEVEL_THREE);
retval.add(tmpSB);
}
}
return retval;
}