content: /**
   * Copyright 2020 Alexander Herzog
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package statistics;
  
  /**
   * Interface, welches in einigen Funktionen von {@link StatisticsDataCollector}
   * genutzt werden kann, um Messwerte vor der Summation zu gewichten.
   * @author Alexander Herzog
   * @see StatisticsDataCollector#getProcessedSum(ValueProcessorFunction)
   * @see StatisticsDataCollector#getProcessedSum(int, int, ValueProcessorFunction)
   */
  public interface ValueProcessorFunction {
  	/**
  	 * Funktion, die bei der Berechnung der Summe mit jedem Messwert,
  	 * der in die Summe aufgenommen werden soll, aufgerufen wird.
  	 * @param index	Index des Messwertes
  	 * @param value	Wert am Index
  	 * @return	Verarbeiteter Messwert
  	 */
  	double process(int index, double value);
  
  }
  