def testMagArrayForSedList(self):
"""
Test that magArrayForSedList calculates the correct magnitude
"""
nBandpasses = 7
bpNameList, bpList = self.getListOfBandpasses(nBandpasses)
testBpDict = BandpassDict(bpList, bpNameList)
nSed = 20
sedNameList = self.getListOfSedNames(nSed)
magNormList = self.rng.random_sample(nSed)*5.0 + 15.0
internalAvList = self.rng.random_sample(nSed)*0.3 + 0.1
redshiftList = self.rng.random_sample(nSed)*5.0
galacticAvList = self.rng.random_sample(nSed)*0.3 + 0.1
# first, test on an SedList without a wavelenMatch
testSedList = SedList(sedNameList, magNormList,
fileDir=self.sedDir,
internalAvList=internalAvList,
redshiftList=redshiftList,
galacticAvList=galacticAvList)
magArray = testBpDict.magArrayForSedList(testSedList)
for ix, sedObj in enumerate(testSedList):
dummySed = Sed(wavelen=copy.deepcopy(sedObj.wavelen),
flambda=copy.deepcopy(sedObj.flambda))
for iy, bp in enumerate(bpNameList):
mag = dummySed.calcMag(bpList[iy])
self.assertAlmostEqual(mag, magArray[bp][ix], 2)
# now use wavelenMatch
testSedList = SedList(sedNameList, magNormList,
fileDir=self.sedDir,
internalAvList=internalAvList,
redshiftList=redshiftList,
galacticAvList=galacticAvList,
wavelenMatch=testBpDict.wavelenMatch)
magArray = testBpDict.magArrayForSedList(testSedList)
for ix, sedObj in enumerate(testSedList):
dummySed = Sed(wavelen=copy.deepcopy(sedObj.wavelen),
flambda=copy.deepcopy(sedObj.flambda))
for iy, bp in enumerate(bpNameList):
mag = dummySed.calcMag(bpList[iy])
self.assertAlmostEqual(mag, magArray[bp][ix], 2)
def testIndicesOnMagnitudes(self):
"""
Test that, when you pass a list of indices into the calcMagList
methods, you get the correct magnitudes out.
"""
nBandpasses = 7
nameList, bpList = self.getListOfBandpasses(nBandpasses)
testBpDict = BandpassDict(bpList, nameList)
# first try it with a single Sed
wavelen = np.arange(10.0, 2000.0, 1.0)
flux = (wavelen*2.0-5.0)*1.0e-6
spectrum = Sed(wavelen=wavelen, flambda=flux)
indices = [1, 2, 5]
magList = testBpDict.magListForSed(spectrum, indices=indices)
ctNaN = 0
for ix, (name, bp, magTest) in enumerate(zip(nameList,
bpList,
magList)):
if ix in indices:
magControl = spectrum.calcMag(bp)
self.assertAlmostEqual(magTest, magControl, 5)
else:
ctNaN += 1
np.testing.assert_equal(magTest, np.NaN)
self.assertEqual(ctNaN, 4)
nSed = 20
sedNameList = self.getListOfSedNames(nSed)
magNormList = self.rng.random_sample(nSed)*5.0 + 15.0
internalAvList = self.rng.random_sample(nSed)*0.3 + 0.1
redshiftList = self.rng.random_sample(nSed)*5.0
galacticAvList = self.rng.random_sample(nSed)*0.3 + 0.1
# now try a SedList without a wavelenMatch
testSedList = SedList(sedNameList, magNormList,
fileDir=self.sedDir,
internalAvList=internalAvList,
redshiftList=redshiftList,
galacticAvList=galacticAvList)
magList = testBpDict.magListForSedList(testSedList, indices=indices)
magArray = testBpDict.magArrayForSedList(testSedList, indices=indices)
self.assertEqual(magList.shape[0], nSed)
self.assertEqual(magList.shape[1], nBandpasses)
self.assertEqual(magArray.shape[0], nSed)
for bpname in testBpDict:
self.assertEqual(len(magArray[bpname]), nSed)
for ix, sedObj in enumerate(testSedList):
dummySed = Sed(wavelen=copy.deepcopy(sedObj.wavelen),
flambda=copy.deepcopy(sedObj.flambda))
ctNaN = 0
for iy, bp in enumerate(testBpDict):
if iy in indices:
mag = dummySed.calcMag(testBpDict[bp])
self.assertAlmostEqual(mag, magList[ix][iy], 2)
self.assertAlmostEqual(mag, magArray[ix][iy], 2)
self.assertAlmostEqual(mag, magArray[bp][ix], 2)
else:
ctNaN += 1
np.testing.assert_equal(magList[ix][iy], np.NaN)
np.testing.assert_equal(magArray[ix][iy], np.NaN)
np.testing.assert_equal(magArray[bp][ix], np.NaN)
self.assertEqual(ctNaN, 4)
# now use wavelenMatch
testSedList = SedList(sedNameList, magNormList,
fileDir=self.sedDir,
internalAvList=internalAvList,
redshiftList=redshiftList,
galacticAvList=galacticAvList,
wavelenMatch=testBpDict.wavelenMatch)
magList = testBpDict.magListForSedList(testSedList, indices=indices)
magArray = testBpDict.magArrayForSedList(testSedList, indices=indices)
self.assertEqual(magList.shape[0], nSed)
self.assertEqual(magList.shape[1], nBandpasses)
self.assertEqual(magArray.shape[0], nSed)
for bpname in testBpDict:
self.assertEqual(len(magArray[bpname]), nSed)
for ix, sedObj in enumerate(testSedList):
dummySed = Sed(wavelen=copy.deepcopy(sedObj.wavelen),
flambda=copy.deepcopy(sedObj.flambda))
ctNaN = 0
for iy, bp in enumerate(testBpDict):
if iy in indices:
mag = dummySed.calcMag(testBpDict[bp])
self.assertAlmostEqual(mag, magList[ix][iy], 2)
self.assertAlmostEqual(mag, magArray[ix][iy], 2)
self.assertAlmostEqual(mag, magArray[bp][ix], 2)
else:
ctNaN += 1
np.testing.assert_equal(magList[ix][iy], np.NaN)
np.testing.assert_equal(magArray[ix][iy], np.NaN)
np.testing.assert_equal(magArray[bp][ix], np.NaN)
self.assertEqual(ctNaN, 4)