Compute statistics on the accuracy of a wcs solution, using a
precomputed list of matches between an image and a catalog.
Parameters
----------
matchList : `lsst.afw.detection.SourceMatch`
List of matches between sources and references to compute statistics
on.
Returns
-------
values : `dict
Value dictionary with fields:
- diffInPixels_mean : Average distance between image and
catalog position in pixels (`float`).
- diffInPixels_std : Root mean square of distribution of distances
(`float`).
- diffInPixels_Q25 : 25% quantile boundary of the match dist
distribution (`float`).
- diffInPixels_Q50 : 50% quantile boundary of the match dist
distribution (`float`).
- diffInPixels_Q75 : 75% quantile boundary of the match
dist distribution (`float`).
Definition at line 28 of file sourceMatchStatistics.py.