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package de.lmu.ifi.dbs.elki.math.statistics.tests;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2015
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
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/>.
*/
/**
* Interface for the statistical test used by HiCS.
*
* Consists of a single method that calculates the deviation between two data
* samples, given as arrays of double values.
*
* Note that different measures may have very different scale!
*
* @author Jan Brusis
* @author Erich Schubert
* @since 0.5.0
*/
public interface GoodnessOfFitTest {
/**
* Measure the deviation of a full sample from a conditional sample.
*
* Sample arrays <em>may</em> be modified, e.g. sorted, by the test.
*
* @param fullSample Full sample
* @param conditionalSample Conditional sample
*
* @return Deviation
*/
double deviation(double[] fullSample, double[] conditionalSample);
}
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