utils/benchmark/src/statistics.h

   1 // Copyright 2016 Ismael Jimenez Martinez. All rights reserved.
   2 // Copyright 2017 Roman Lebedev. All rights reserved.
   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 #ifndef STATISTICS_H_
  17 #define STATISTICS_H_
  18
  19 #include <vector>
  20
  21 #include "benchmark/benchmark.h"
  22
  23 namespace benchmark {
  24
  25 // Return a vector containing the mean, median and standard devation information
  26 // (and any user-specified info) for the specified list of reports. If 'reports'
  27 // contains less than two non-errored runs an empty vector is returned
  28 std::vector<BenchmarkReporter::Run> ComputeStats(
  29     const std::vector<BenchmarkReporter::Run>& reports);
  30
  31 double StatisticsMean(const std::vector<double>& v);
  32 double StatisticsMedian(const std::vector<double>& v);
  33 double StatisticsStdDev(const std::vector<double>& v);
  34
  35 }  // end namespace benchmark
  36
  37 #endif  // STATISTICS_H_