compute Vector Mean - Java java.lang

Java examples for java.lang:Math Vector

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Description

compute Vector Mean

Demo Code

/*//from   w w  w.  ja v a  2  s.co m
 * Copyright (C) 2014 University of Freiburg.
 *
 * 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 com.java2s;

import java.util.HashMap;

public class Main {
    private static <T> double computeVectorMean(HashMap<T, Double> vector) {
        double mean = 0;
        // Compute sum of all contained values
        double sum = 0;
        for (double value : vector.values()) {
            sum += value;
        }

        // Compute mean of vector values
        mean = sum / vector.values().size();
        return mean;
    }
}

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