1 /*
2  * Copyright (C) 2021 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.cts.verifier.audio.audiolib;
18 
19 public class StatUtils {
calculateMeanAbsoluteDeviation( double mean, double[] values, int numValues)20     public static double calculateMeanAbsoluteDeviation(
21             double mean, double[] values, int numValues) {
22         double sum = 0.0;
23         for (int index = 0; index < numValues; index++) {
24             sum += Math.abs(values[index] - mean);
25         }
26         return sum / numValues;
27     }
28 
calculateMean(double[] values)29     public static double calculateMean(double[] values) {
30         double sum = 0.0;
31         for (double value : values) {
32             sum += value;
33         }
34         return sum / values.length;
35     }
36 }
37