menzel
a198d2aaa5
CI for csaxs_bec / test (push) Successful in 1m48s
Four scans agreed that the first point of every line loses a fixed number of milliseconds rather than a fixed fraction -- 5.18 ms at 15 ms per point, 5.36 at 20, 5.93 and 6.04 at 50 -- while the fraction itself moved from 35% to 12%. Scan 473 was the exception at 16.09 ms, and its own last/bulk of 1.207 said why: the intensity rises 20% along every line in that scan, so the whole-line mean is a biased baseline and manufactures a deficit at the low end. Both ends are now measured against their own k nearest neighbours, and the along-line trend is reported next to them so the confounder is visible rather than folded in. On a synthetic file carrying a true 6.0 ms deficit under a 20% ramp, the old baseline reported 14.46 ms and the new one reports 6.09. A channel only contributes to the summary if its deficit exceeds three standard errors over the lines. mca8 sits at two counts and was donating a meaningless 0.71 ms to the median. Positioners are also now excluded by having a setpoint rather than by their trace being monotonic. The shape test discarded any intensity that drifts smoothly along a line -- which is precisely the case that motivated this commit.