Searched defs:variance (Results 1 - 3 of 3) sorted by relevance

/frameworks/av/media/libcpustats/
H A DCentralTendencyStatistics.cpp52 double CentralTendencyStatistics::variance() const function in class:CentralTendencyStatistics
54 double variance; local
58 variance = mM2 / (mN - 1);
60 variance = NAN;
62 mVariance = variance;
65 variance = mVariance;
67 return variance;
74 stddev = sqrt(variance());
/frameworks/base/tests/JankBench/scripts/external/
H A Dstatistics.py22 averages, variance, and standard deviation.
68 pvariance Population variance of data.
69 variance Sample variance of data.
96 'pstdev', 'pvariance', 'stdev', 'variance',
487 # variance", as that is only suitable for hand calculations with a small
513 def variance(data, xbar=None): function
514 """Return the sample variance of data.
521 calculate the variance from the entire population, see ``pvariance``.
526 >>> variance(dat
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/frameworks/native/libs/vr/libpdx_default_transport/
H A Dpdx_benchmarks.cpp584 // Samples for variance calculation.
909 const double variance = sum_of_squared_deviations / latency_samples_ns.size(); local
910 const double standard_deviation = std::sqrt(variance);

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