lsst.meas.astrom gb9f4f1e462+d4cf900480
Functions
lsst.meas.astrom.sip.sourceMatchStatistics Namespace Reference

Functions

def sourceMatchStatistics (matchList, log=None)
 

Function Documentation

◆ sourceMatchStatistics()

def lsst.meas.astrom.sip.sourceMatchStatistics.sourceMatchStatistics (   matchList,
  log = None 
)
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.