37 lines
867 B
C
37 lines
867 B
C
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/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_TEST_STATISTICS_H_
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#define WEBRTC_TEST_STATISTICS_H_
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#include "webrtc/typedefs.h"
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namespace webrtc {
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namespace test {
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class Statistics {
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public:
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Statistics();
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void AddSample(double sample);
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double Mean() const;
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double Variance() const;
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double StandardDeviation() const;
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private:
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double sum_;
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double sum_squared_;
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uint64_t count_;
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};
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} // namespace test
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} // namespace webrtc
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#endif // WEBRTC_TEST_STATISTICS_H_
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