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• ChiSquare.java

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com.datastax.data.exploration.biz.chiSquare.ChiSquare Maven / Gradle / Ivy

package com.datastax.data.exploration.biz.chiSquare;

import org.apache.commons.math3.stat.inference.ChiSquareTest;

/**
 * @author songfu 2018/1/16
 *
 * 卡方验证:卡方值,p值
 */
public class ChiSquare {

    private static ChiSquareTest chi = new org.apache.commons.math3.stat.inference.ChiSquareTest();

    public static double chiValue(long[][] counts) {
        return chi.chiSquare(counts);
    }

    public static double chiPvalue(long[][] counts) {
        return chi.chiSquareTest(counts);
    }
}