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Java example source code file (UnmodifiableOpenMapRealVectorTest.java)

This example Java source code file (UnmodifiableOpenMapRealVectorTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

dim, eps, openmaprealvector, override, probability_of_zero, realvector, unmodifiableopenmaprealvectortest, unmodifiablerealvectorabstracttest

The UnmodifiableOpenMapRealVectorTest.java Java example source code

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.commons.math3.linear;

 * This is an implementation of {@link UnmodifiableRealVectorAbstractTest} for
 * unmodifiable views of {@link OpenMapRealVector}.
public class UnmodifiableOpenMapRealVectorTest
    extends UnmodifiableRealVectorAbstractTest {
    /** To ensure sufficient sparsity. */
    public static final double PROBABILITY_OF_ZERO = 0.5;

     * Returns a random vector of type {@link ArrayRealVector}.
     * @return a new random {@link ArrayRealVector}.
    public RealVector createVector() {
        OpenMapRealVector v = new OpenMapRealVector(DIM, EPS);
        for (int i = 0; i < DIM; i++) {
            if (RANDOM.nextDouble() > PROBABILITY_OF_ZERO) {
                v.setEntry(i, RANDOM.nextDouble());
        return v;

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