org.opensearch.search.aggregations.matrix.stats.MatrixStats Maven / Gradle / Ivy
/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
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* the Apache License, Version 2.0 (the "License"); you may
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
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/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.search.aggregations.matrix.stats;
import org.opensearch.search.aggregations.Aggregation;
/**
* Interface for MatrixStats Metric Aggregation
*/
public interface MatrixStats extends Aggregation {
/** return the total document count */
long getDocCount();
/** return total field count (differs from docCount if there are missing values) */
long getFieldCount(String field);
/** return the field mean */
double getMean(String field);
/** return the field variance */
double getVariance(String field);
/** return the skewness of the distribution */
double getSkewness(String field);
/** return the kurtosis of the distribution */
double getKurtosis(String field);
/** return the covariance between field x and field y */
double getCovariance(String fieldX, String fieldY);
/** return the correlation coefficient of field x and field y */
double getCorrelation(String fieldX, String fieldY);
}