Searched refs:variance (Results 1 - 25 of 58) sorted by relevance

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/external/linux-tools-perf/perf-3.12.0/tools/perf/util/
H A Dstat.c44 double variance, variance_mean; local
49 variance = stats->M2 / (stats->n - 1);
50 variance_mean = variance / stats->n;
/external/lldb/tools/lldb-perf/lib/
H A DMetric.cpp76 T variance; local
78 variance = M2 / n;
80 variance = M2 / (n - 1);
81 return sqrt(variance);
/external/chromium_org/third_party/libvpx/source/libvpx/vp8/common/
H A Dvariance_c.c12 #include "variance.h"
34 static void variance( function
76 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
92 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg);
108 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg);
125 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 8, &var, &avg);
141 variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 4, &var, &avg);
157 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
/external/libvpx/libvpx/vp8/common/
H A Dvariance_c.c12 #include "variance.h"
34 static void variance( function
76 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
92 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg);
108 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg);
125 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 8, &var, &avg);
141 variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 4, &var, &avg);
157 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
/external/chromium_org/third_party/webrtc/voice_engine/test/auto_test/standard/
H A Dvideo_sync_test.cc58 // Computes the standard deviation by first estimating the sample variance
66 float variance = 0; local
68 variance += (*start - mean) * (*start - mean) / (num_elements - 1);
70 return sqrt(variance);
/external/chromium_org/tools/auto_bisect/
H A Dmath_utils.py61 """Calculates the sample variance."""
67 variance = sum(squared_differences) / (len(values) - 1)
68 return variance
/external/libvpx/libvpx/vp9/encoder/
H A Dvp9_variance.c21 void variance(const uint8_t *src_ptr, function
174 variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 32, &var, &avg);
231 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 64, &var, &avg);
288 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 16, &var, &avg);
345 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 32, &var, &avg);
402 variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 64, &var, &avg);
415 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 32, &var, &avg);
423 variance(src_ptr, source_stride, ref_ptr, ref_stride, 16, 16, sse, sum);
434 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
447 variance(src_pt
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H A Dvp9_variance.h20 void variance(const uint8_t *src_ptr,
H A Dvp9_aq_variance.c128 variance(x->plane[0].src.buf, x->plane[0].src.stride,
/external/opencv/cvaux/src/
H A Dcvbgfg_gaussmix.cpp79 icvMatchTest(...) assumes what all color channels component exhibit the same variance
120 //Rw is the learning rate for weight and Rg is leaning rate for mean and variance
126 //The list is maintained in sorted order using w/sqrt(variance) as a key
132 //v[n+1] = v[n] + Rg*((x[n+1] - u[n])*(x[n+1] - u[n])) - v[n]) variance
206 bg_model->g_point[n].g_values[0].variance[m] = var_init;
214 bg_model->g_point[n].g_values[k].variance[m] = var_init;
390 var_threshold += g_point->g_values[k].variance[m];
420 sum_d2 += (d*d) / (g_point->g_values[k].variance[m] * g_point->g_values[k].variance[m]);
452 g_point->g_values[k].variance[
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/external/chromium_org/third_party/leveldatabase/src/util/
H A Dhistogram.cc101 double variance = (sum_squares_ * num_ - sum_ * sum_) / (num_ * num_); local
102 return sqrt(variance);
/external/chromium_org/build/util/lib/common/
H A Dperf_tests_results_helper.py82 variance = sum(sqdiffs) / (len(values) - 1)
83 sd = math.sqrt(variance)
/external/chromium_org/third_party/libvpx/source/libvpx/vp9/encoder/
H A Dvp9_variance.h20 void variance(const uint8_t *a, int a_stride,
H A Dvp9_variance.c21 void variance(const uint8_t *a, int a_stride, function
118 variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
163 variance(src_ptr, source_stride, ref_ptr, ref_stride, 16, 16, sse, sum);
169 variance(src_ptr, source_stride, ref_ptr, ref_stride, 8, 8, sse, sum);
176 variance(src, src_stride, ref, ref_stride, 16, 16, sse, &sum);
184 variance(src, src_stride, ref, ref_stride, 16, 8, sse, &sum);
192 variance(src, src_stride, ref, ref_stride, 8, 16, sse, &sum);
200 variance(src, src_stride, ref, ref_stride, 8, 8, sse, &sum);
H A Dvp9_aq_variance.c129 variance(x->plane[0].src.buf, x->plane[0].src.stride,
/external/chromium_org/third_party/webrtc/voice_engine/
H A Dutility_unittest.cc101 float variance = 0; local
106 variance += ref_frame.data_[i] * ref_frame.data_[i];
110 snr = 10 * log10(variance / mse);
/external/chromium_org/third_party/webrtc/video_engine/
H A Doveruse_frame_detector.cc267 // Calculate variance (using samples above the mean).
271 float variance = 0.0f; local
280 variance += ((time - mean) * (time - mean));
284 variance /= std::max(total_count, 1);
285 float cov = sqrt(variance) / mean;
/external/fio/tools/plot/
H A Dfio2gnuplot253 variance = map(lambda x: (x - avg)**2, disk_perf[disk])
254 standard_deviation = math.sqrt(average(variance))
267 variance = map(lambda x: (x - avg)**2, global_disk_perf)
268 standard_deviation = math.sqrt(average(variance))
/external/chromium_org/chrome/browser/net/
H A Durl_info.cc254 double variance = static_cast<float>(square_sum_)/count_ local
256 return static_cast<int>(floor(sqrt(variance) + .5));
/external/chromium_org/third_party/WebKit/PerformanceTests/SunSpider/resources/
H A Dsunspider-analyze-results.js131 variance = deltaSquaredSum / (items.length - 1);
132 return Math.sqrt(variance);
H A Dsunspider-compare-results.js194 variance = deltaSquaredSum / (items.length - 1);
195 return Math.sqrt(variance);
/external/deqp/modules/glshared/
H A DglsStateChangePerfTestCases.cpp59 double variance; member in struct:deqp::gls::__anon20408::ResultStats
79 result.variance += (val - result.mean) * (val - result.mean);
82 result.variance /= values.size();
548 log << TestLog::Message << "Interleaved variance: " << interleaved.variance << TestLog::EndMessage;
554 log << TestLog::Message << "Batched variance: " << batched.variance << TestLog::EndMessage;
702 log << TestLog::Message << "Iteration variance time: " << varIteration << TestLog::EndMessage;
/external/chromium_org/third_party/WebKit/PerformanceTests/resources/
H A Drunner.js67 // Compute the mean and variance using Knuth's online algorithm (has good numerical stability).
78 result.variance = data.length <= 1 ? 0 : squareSum / (data.length - 1);
79 result.stdev = Math.sqrt(result.variance);
/external/antlr/antlr-3.4/runtime/Ruby/lib/antlr3/
H A Dprofile.rb84 def variance method in class:ANTLR3.Profile.DataSet
90 sqrt( variance )
/external/chromium_org/third_party/WebKit/Source/devtools/front_end/timeline/
H A DTimelineFrameModel.js542 var variance = sumOfSquares / this.frameCount - this.average * this.average;
543 this.stddev = Math.sqrt(variance);

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