GNU Astronomy Utilities - Bugs: bug #56573, Arithmetic sigclip-median gives...
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bug #56573: Arithmetic sigclip-median gives nan values with only 2 images
Submitter: | Raul Infante-Sainz <infantesainz> | ||
Submitted: | Tue 02 Jul 2019 08:52:56 PM UTC | ||
Category: | Arithmetic | Severity: | 3 - Normal |
Item Group: | Output not reasonable | Status: | None |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Open |
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When trying to combine only two images with `sigclip-median' operator the result is not reasonable. In the output there are some nan values that I think it is because the sigma clipped median is not well defined (due to the small number of values).
That operator with such few number of images has no sense, so maybe it could print a warning but it should give a result with no nans. If the sigma clipped median/mean is not well defined, then give the median/mean value (with no sigma clipping).
Sounds reasonable?