Can be used by setting settings.combine_ccdreject = 1, and is controlled
by settings.combine_ccdreject_sigma (default [3., 3.]), which contains
the lower and upper sigma values, respectively, for rejection.
If enabled (it is off by default), ccdreject is run during the combine
phase immediately prior to sigma clipping. If the CCD parameters
(readnoise and gain) are known, there is probably no reason to perform
additional sigma clipping.
Can be used by setting settings.combine_ccdreject = 1, and is controlled by settings.combine_ccdreject_sigma (default [3., 3.]), which contains the lower and upper sigma values, respectively, for rejection.
If enabled (it is off by default), ccdreject is run during the combine phase immediately prior to sigma clipping. If the CCD parameters (readnoise and gain) are known, there is probably no reason to perform additional sigma clipping.
May resolve #9; in my case it certainly did.