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Searched refs:variance (Results 1 – 3 of 3) sorted by relevance

/system/extras/tests/ext4/
Drand_emmc_perf.c59 long long variance = 0;; in print_stats() local
104 variance += x; /* Summation */ in print_stats()
106 sdev = sqrt((double)variance/(double)stats_count); in print_stats()
/system/media/audio_utils/tests/
Dstatistics_tests.cpp412 const double variance = stat.getPopVariance(); in TEST() local
413 EXPECT_NEAR(variance, in TEST()
416 variance * std::numeric_limits<double>::epsilon() * 128); in TEST()
430 PRINT_AND_EXPECT_EQ(variance, stat_pair.getPopVariance()); in TEST()
/system/extras/boottime_tools/bootanalyze/
Dbootanalyze.py817 variance = sq_diffs_sum / items_count
818 return math.sqrt(variance)