Searched refs:slope (Results 1 – 1 of 1) sorted by relevance
| /tools/testing/selftests/timers/ |
| D | freq-step.c | 112 double *slope, double *r_stddev, double *r_max) in regress() argument
129 *slope = (xy_sum - x_sum * y_sum / n) / (x2_sum - x_sum * x_sum / n); in regress()
130 *intercept = (y_sum - *slope * x_sum) / n; in regress()
137 r = fabs(x * *slope + *intercept - y); in regress()
149 double intercept, slope, stddev1, max1, stddev2, max2; in run_test() local
173 regress(samples, SAMPLES, &intercept, &slope, &stddev1, &max1); in run_test()
174 mono_freq_offset = slope; in run_test()
180 regress(samples, SAMPLES / 2, &intercept, &slope, &stddev1, &max1); in run_test()
181 freq_error1 = slope * (1.0 - mono_freq_offset) - mono_freq_offset - in run_test()
184 regress(samples + SAMPLES / 2, SAMPLES / 2, &intercept, &slope, in run_test()
[all …]
|