| * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| #include "webrtc/test/statistics.h" |
| Statistics::Statistics() : sum_(0.0), sum_squared_(0.0), count_(0) {} |
| void Statistics::AddSample(double sample) { |
| sum_squared_ += sample * sample; |
| double Statistics::Mean() const { |
| double Statistics::Variance() const { |
| return sum_squared_ / count_ - Mean() * Mean(); |
| double Statistics::StandardDeviation() const { |