/*
* RapidMiner
*
* Copyright (C) 2001-2014 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.operator.preprocessing.transformation.aggregation;
import com.rapidminer.example.Attribute;
/**
* This function first behaves like {@link CountAggregationFunction}, but it
* delivers percentages of the total count instead of absolute values.
* E.g. {@link SumAggregationFunction} delivers [2, 5, 3] this function
* would deliver [20, 50, 30]
*
* @author Marco Boeck
*
*/
public class CountPercentageAggregationFunction extends AbstractCountRatioAggregationFunction {
public static final String FUNCTION_COUNT_PERCENTAGE = "percentage_count";
public CountPercentageAggregationFunction(Attribute sourceAttribute, boolean ignoreMissings, boolean countOnlyDisctinct) {
super(sourceAttribute, ignoreMissings, countOnlyDisctinct, FUNCTION_COUNT_PERCENTAGE);
}
public CountPercentageAggregationFunction(Attribute sourceAttribute, boolean ignoreMissings, boolean countOnlyDisctinct, String functionName,
String separatorOpen, String separatorClose) {
super(sourceAttribute, ignoreMissings, countOnlyDisctinct, functionName, separatorOpen, separatorClose);
}
public double getRatioFactor() {
return 100.0;
}
}