edu.uci.jforestsx.util.Constants Maven / Gradle / Ivy
/**
* 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,
* 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 edu.uci.jforestsx.util;
/**
* @author Yasser Ganjisaffar
*/
public class Constants {
public final static double EPSILON = 1.4e-45;
public final static double MIN_EXP_POWER = -50;
public final static double LN2 = Math.log(2);
public static int[] ONE_TWO_THREE_ETC;
public static double[] DOUBLE_ONE_ONE_ONE_ETC;
public static synchronized void init(int maxSize) {
if (ONE_TWO_THREE_ETC == null || ONE_TWO_THREE_ETC.length < maxSize) {
ONE_TWO_THREE_ETC = new int[maxSize];
DOUBLE_ONE_ONE_ONE_ETC = new double[maxSize];
for (int i = 0; i < maxSize; i++) {
ONE_TWO_THREE_ETC[i] = i;
DOUBLE_ONE_ONE_ONE_ETC[i] = 1.0;
}
}
}
}