static Object evaluateRegressionInternal(
FieldName name, Object value, ModelEvaluationContext context) {
ModelEvaluator<?> evaluator = context.getModelEvaluator();
if (Objects.equals(Evaluator.DEFAULT_TARGET, name)) {
DataField dataField = evaluator.getDataField();
if (value != null) {
value = TypeUtil.cast(dataField.getDataType(), value);
}
} else {
Target target = evaluator.getTarget(name);
if (target != null) {
if (value == null) {
value = getDefaultValue(target);
} // End if
if (value != null) {
value = processValue(target, (Double) value);
}
}
DataField dataField = evaluator.getDataField(name);
if (dataField == null) {
throw new MissingFieldException(name);
} // End if
if (value != null) {
value = TypeUtil.cast(dataField.getDataType(), value);
}
MiningField miningField = evaluator.getMiningField(name);
context.declare(
name, FieldValueUtil.createTargetValue(dataField, miningField, target, value));
}
return value;
}
static Classification evaluateClassificationInternal(
FieldName name, Classification value, ModelEvaluationContext context) {
ModelEvaluator<?> evaluator = context.getModelEvaluator();
if (Objects.equals(Evaluator.DEFAULT_TARGET, name)) {
DataField dataField = evaluator.getDataField();
if (value != null) {
value.computeResult(dataField.getDataType());
}
} else {
Target target = evaluator.getTarget(name);
if (target != null) {
if (value == null) {
value = getPriorProbabilities(target);
}
}
DataField dataField = evaluator.getDataField(name);
if (dataField == null) {
throw new MissingFieldException(name);
} // End if
if (value != null) {
value.computeResult(dataField.getDataType());
}
MiningField miningField = evaluator.getMiningField(name);
context.declare(
name,
FieldValueUtil.createTargetValue(
dataField, miningField, target, value != null ? value.getResult() : null));
}
return value;
}