/**
* The MIT License (MIT)
*
* Copyright (c) 2014-2017 Marc de Verdelhan & respective authors (see AUTHORS)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package eu.verdelhan.ta4j;
import java.util.List;
/**
* An analysis criterion.
* <p>
* Can be used to:
* <ul>
* <li>Analyze the performance of a {@link Strategy strategy}
* <li>Compare several {@link Strategy strategies} together
* </ul>
*/
public interface AnalysisCriterion {
/**
* @param series a time series
* @param trade a trade
* @return the criterion value for the trade
*/
double calculate(TimeSeries series, Trade trade);
/**
* @param series a time series
* @param tradingRecord a trading record
* @return the criterion value for the trades
*/
double calculate(TimeSeries series, TradingRecord tradingRecord);
/**
* @param series the time series
* @param strategies a list of strategies
* @return the best strategy (among the provided ones) according to the criterion
*/
Strategy chooseBest(TimeSeries series, List<Strategy> strategies);
/**
* @param criterionValue1 the first value
* @param criterionValue2 the second value
* @return true if the first value is better than (according to the criterion) the second one, false otherwise
*/
boolean betterThan(double criterionValue1, double criterionValue2);
}