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Searched refs:sumXY (Results 1 – 4 of 4) sorted by relevance

/external/apache-commons-math/src/main/java/org/apache/commons/math/stat/regression/
DSimpleRegression.java79 private double sumXY = 0d; field in SimpleRegression
146 sumXY += dx * dy * (double) n / (n + 1d); in addData()
179 sumXY -= dx * dy * (double) n / (n - 1d); in removeData()
242 sumXY = 0d; in clear()
320 return sumXY / sumXX; in getSlope()
353 return FastMath.max(0d, sumYY - sumXY * sumXY / sumXX); in getSumSquaredErrors()
393 return sumXY; in getSumOfCrossProducts()
/external/apache-commons-math/src/main/java/org/apache/commons/math/analysis/interpolation/
DLoessInterpolator.java280 double sumXY = 0; in smooth() local
292 sumXY += yk * xkw; in smooth()
297 final double meanXY = sumXY / sumWeights; in smooth()
/external/webp/src/dsp/
Dlossless_enc.c386 int sumX = 0, sumXY = 0; in CombinedShannonEntropy() local
393 sumXY += xy; in CombinedShannonEntropy()
396 sumXY += Y[i]; in CombinedShannonEntropy()
400 retval += VP8LFastSLog2(sumX) + VP8LFastSLog2(sumXY); in CombinedShannonEntropy()
Dlossless_enc_sse2.c282 int sumX, sumXY; in CombinedShannonEntropy() local
325 sumXY = tmp[3] + tmp[2] + tmp[1] + tmp[0]; in CombinedShannonEntropy()
327 retval += VP8LFastSLog2(sumX) + VP8LFastSLog2(sumXY); in CombinedShannonEntropy()