lsst.meas.astrom  14.0-7-g0d69b06+3
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 catalogue

Input:
matchList is a lsst::afw::detection::SourceMatch object

Output:
A dictionary storing the following quanities
meanOfDiffInPixels          Average distance between image and catalogue position (in pixels)
rmsOfDiffInPixels           Root mean square of distribution of distances
quartilesOfDiffInPixels     An array of 5 values giving the boundaries of the quartiles of the
                            distribution.

Definition at line 29 of file sourceMatchStatistics.py.