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Searched refs:correlation (Results 1 - 6 of 6) sorted by relevance

/third_party/skia/third_party/externals/oboe/apps/OboeTester/app/src/main/cpp/analyzer/
H A DLatencyAnalyzer.h66 // Calculate a normalized cross correlation.
70 double correlation = 0.0; in calculateNormalizedCorrelation() local
78 // Use a normalized cross-correlation. in calculateNormalizedCorrelation()
84 correlation = 2.0 * sumProducts / sumSquares; in calculateNormalizedCorrelation()
86 return correlation; in calculateNormalizedCorrelation()
218 float correlation = (float) calculateNormalizedCorrelation(&recorded.getData()[i], in measureLatencyFromPulse() local
221 correlations[i] = correlation; in measureLatencyFromPulse()
224 // Find highest peak in correlation array. in measureLatencyFromPulse()
235 ALOGE("%s() no signal for correlation\n", __func__); in measureLatencyFromPulse()
239 // Dump correlation dat in measureLatencyFromPulse()
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/third_party/ffmpeg/libavfilter/
H A Daf_atempo.c69 // fast waveform alignment via correlation in frequency domain:
143 // for fast correlation calculation in frequency domain:
148 float *correlation; member
242 av_freep(&atempo->correlation); in yae_release_buffers()
317 RE_MALLOC_OR_FAIL(atempo->correlation, atempo->window * sizeof(AVComplexFloat)); in yae_reset()
600 * Calculate cross-correlation via rDFT.
637 float *correlation, in yae_align()
650 correlation, in yae_align()
664 // identify cross-correlation peaks within search window: in yae_align()
665 xcorr = correlation in yae_align()
631 yae_align(AudioFragment *frag, const AudioFragment *prev, const int window, const int delta_max, const int drift, float *correlation_in, float *correlation, AVTXContext *complex_to_real, av_tx_fn c2r_fn) yae_align() argument
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/third_party/libbpf/include/uapi/linux/
H A Dpkt_sched.h601 __u32 delay_corr; /* delay correlation */
602 __u32 loss_corr; /* packet loss correlation */
603 __u32 dup_corr; /* duplicate correlation */
608 __u32 correlation; member
613 __u32 correlation; member
/third_party/ffmpeg/libavcodec/
H A Dilbcdec.c914 static void correlation(int32_t *corr, int32_t *ener, int16_t *buffer, in correlation() function
1010 correlation(&cross, &ener, s->prevResidual, lag, s->block_samples, corrLen, scale3); in do_plc()
1017 correlation(&cross_comp, &ener_comp, s->prevResidual, j, s->block_samples, corrLen, scale3); in do_plc()
1051 /* Calculate the periodicity for the lag with the maximum correlation. in do_plc()
1072 /* Square the cross correlation and norm it such that max_perSquare in do_plc()
1262 /* Put cross correlation and energy on 16 bit word */ in xcorr_coeff()
1268 /* Square cross correlation and store upper int16_t */ in xcorr_coeff()
/third_party/python/Lib/test/
H A Dtest_statistics.py2523 statistics.correlation(x, y)
2539 statistics.correlation(x, y)
2554 self.assertAlmostEqual(statistics.correlation(x, y), result)
2560 self.assertAlmostEqual(statistics.correlation(x, y), 0.5)
2564 self.assertAlmostEqual(statistics.correlation(x, y), 1)
/third_party/python/Lib/
H A Dstatistics.py83 correlation Pearson's correlation coefficient for two variables.
87 Calculate covariance, Pearson's correlation, and simple linear regression
94 >>> correlation(x, y) #doctest: +ELLIPSIS
110 'correlation',
991 def correlation(x, y, /): function
992 """Pearson's correlation coefficient
994 Return the Pearson's correlation coefficient for two inputs. Pearson's
995 correlation coefficient *r* takes values between -1 and +1. It measures the
1002 >>> correlation(
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