Searched refs:sumy (Results 1 - 2 of 2) sorted by relevance
| /third_party/ffmpeg/libavfilter/ |
| H A D | af_axcorrelate.c | 85 type sumy, int size) \
87 const type xm = sumx / size, ym = sumy / size; \
120 type *sumy = (type *)s->mean_sum[1]->extended_data[ch]; \
126 sumy[0] = mean_sum_##suffix(y, size); \
134 sumx[0], sumy[0], \
139 sumy[0] -= y[n]; \
140 sumy[0] += y[idx]; \
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| /third_party/ffmpeg/libavcodec/ |
| H A D | rpzaenc.c | 269 double sumx = 0, sumy = 0, sumx2 = 0, sumy2 = 0, sumxy = 0, in leastsquares() local
284 sumy += y; in leastsquares()
299 sumy_sq = sumy * sumy; in leastsquares()
301 *slope = (sumx * sumy - sumxy) / tmp; in leastsquares()
302 *y_intercept = (sumy - (*slope) * sumx) / count; in leastsquares()
308 *correlation_coef = (count * sumxy - sumx * sumy) / in leastsquares()
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