Runtimewarning: invalid value encountered in true_divide

Python/lsst/meas/algorithms/objectSizeStarSelector.py | 18 +++++++++. Python/lsst/meas/algorithms/measureApCorr.py | 3 ++. Python/lsst/meas/algorithms/matcherSourceSelector.py | 3 ++. lsst/meas/algorithms/astrometrySourceSelector.py | 3 ++. software/lsstsw/stack/Linuењ†4/meas_algorithms/13.0-18-gc4ad422+4/python/lsst/meas/algorithms/matcherSourceSelector.py:126: RuntimeWarning: invalid value encountered in greater

software/lsstsw/stack/Linuењ†4/meas_algorithms/13.0-18-gc4ad422+4/python/lsst/meas/algorithms/objectSizeStarSelector.py:400: RuntimeWarning: invalid value encountered in less It'd be good to make them go away.ДЄn example data id to reproduce is to run: processCcd.py /datasets/hsc/repo/ -rerun private/username/abcd -id visit=28398 ccd=29

Jim Bosch thinks they are likely from comparisons with NaNs for flagged sources. Return sourceCat.get(self.fluxKey)/sourceCat.get(self.fluxSigmaKey) > software/lsstsw/stack/Linuењ†4/meas_algorithms/ 13.0 - 18 -gc4ad422+ 4 /python/lsst/meas/algorithms/matcherSourceSelector.py: 126 : RuntimeWarning: invalid value encountered in greater software/lsstsw/stack/Linuењ†4/meas_algorithms/ 13.0 - 18 -gc4ad422+ 4 /python/lsst/meas/algorithms/objectSizeStarSelector.py: 400 : RuntimeWarning: invalid value encountered in lessД«ad = numpy.logical_or(bad, width )

Runtimewarning: invalid value encountered in true_divide