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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/jmonkeyengine/engine/src/core/com/jme3/math/
DLine.java156 float sumXX = 0.0f, sumXY = 0.0f, sumXZ = 0.0f; in orthogonalLineFit() local
164 sumXY += compVec2.x * compVec2.y; in orthogonalLineFit()
173 compMat1.m01 = -sumXY; in orthogonalLineFit()
175 compMat1.m10 = -sumXY; in orthogonalLineFit()
/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.c565 int sumX = 0, sumXY = 0; in CombinedShannonEntropy() local
572 sumXY += xy; in CombinedShannonEntropy()
575 sumXY += xy; in CombinedShannonEntropy()
579 retval += VP8LFastSLog2(sumX) + VP8LFastSLog2(sumXY); in CombinedShannonEntropy()