/*
 * Copyright (c) 2012-2013, Peter Abeles. All Rights Reserved.
 *
 * This file is part of DDogleg (http://ddogleg.org).
 *
 * 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 org.ddogleg.util;


public class UtilDouble {

	public static void normalize( double[] a ) {
		double total = sum(a);
		for( int i = 0; i < a.length; i++ ) {
			a[i] /= total;
		}
	}

	@SuppressWarnings({"ForLoopReplaceableByForEach"})
	public static double sum( double[] a ) {
		double ret = 0;

		for( int i = 0; i < a.length; i++ ) {
			ret += a[i];
		}

		return ret;
	}

	public static void print( double[] a , String format ) {
		System.out.print("[ ");
		for( int i = 0; i < a.length; i++ ) {
			System.out.printf(format+" ",a[i]);
		}
		System.out.println("]");
	}

	public static void normalize( float[] a ) {
		float total = sum(a);
		for( int i = 0; i < a.length; i++ ) {
			a[i] /= total;
		}
	}

	public static float sum( float[] a ) {
		float ret = 0;

		for( int i = 0; i < a.length; i++ ) {
			ret += a[i];
		}

		return ret;
	}

	public static void print( float[] a , String format ) {
		System.out.print("[ ");
		for( int i = 0; i < a.length; i++ ) {
			System.out.printf(format+" ",a[i]);
		}
		System.out.println("]");
	}
}