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/*
* 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.
*/
#ifndef WEBRTC_TEST_STATISTICS_H_
#define WEBRTC_TEST_STATISTICS_H_
#include "webrtc/typedefs.h"
namespace webrtc {
namespace test {
class Statistics {
public:
Statistics();
void AddSample(double sample);
double Mean() const;
double Variance() const;
double StandardDeviation() const;
private:
double sum_;
double sum_squared_;
uint64_t count_;
};
} // namespace test
} // namespace webrtc
#endif // WEBRTC_TEST_STATISTICS_H_
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