def load_qa_frame(filename, frame=None, flavor=None):
""" Load an existing QA_Frame or generate one, as needed
Args:
filename: str
frame: Frame object, optional
flavor: str, optional
Type of QA_Frame
Returns:
qa_frame: QA_Frame object
"""
from lvmspec.qa.qa_frame import QA_Frame
log=get_logger()
if os.path.isfile(filename): # Read from file, if it exists
qaframe = read_qa_frame(filename)
log.info("Loaded QA file {:s}".format(filename))
# Check against frame, if provided
if frame is not None:
for key in ['camera','expid','night','flavor']:
assert getattr(qaframe, key) == frame.meta[key.upper()]
else: # Init
if frame is None:
log.error("QA file {:s} does not exist. Expecting frame input".format(filename))
qaframe = QA_Frame(frame)
# Set flavor?
if flavor is not None:
qaframe.flavor = flavor
# Return
return qaframe
def test_qa_frame_write_load_data(self):
# Write
frm0 = self._make_frame()
qafrm0 = QA_Frame(frm0)
write_qa_frame(self.qafile_b0, qafrm0)
# Load
qafrm2 = load_qa_frame(self.qafile_b0, frm0)
assert qafrm2.night == qafrm0.night
def test_init_qa_skysub(self):
#- Init SkySub dict
qafrm = QA_Frame(self._make_frame(flavor='science'))
qafrm.init_skysub()
assert qafrm.qa_data['SKYSUB']['PARAMS']['PCHI_RESID'] > 0.
#- ReInit SkySub dict
qafrm.init_skysub(re_init=True)
assert qafrm.qa_data['SKYSUB']['PARAMS']['PCHI_RESID'] > 0.
def test_init_qa_fluxcalib(self):
#- Init FluxCalib dict
qafrm = QA_Frame(self._make_frame(flavor='science'))
qafrm.init_fluxcalib()
assert qafrm.qa_data['FLUXCALIB']['PARAMS']['MAX_ZP_OFF'] > 0.
#- ReInit FluxCalib dict
qafrm.init_fluxcalib(re_init=True)
assert qafrm.qa_data['FLUXCALIB']['PARAMS']['MAX_ZP_OFF'] > 0.
def test_init_qa_fiberflat(self):
#- Init FiberFlat dict
qafrm = QA_Frame(self._make_frame(flavor='flat'))
qafrm.init_fiberflat()
assert qafrm.qa_data['FIBERFLAT']['PARAMS']['MAX_RMS'] > 0.
#- ReInit FiberFlat dict
qafrm.init_fiberflat(re_init=True)
assert qafrm.qa_data['FIBERFLAT']['PARAMS']['MAX_RMS'] > 0.
def read_qa_frame(filename):
"""Generate a QA_Frame object from a data file
"""
from lvmspec.qa.qa_frame import QA_Frame
#- check if filename is (night, expid, camera) tuple instead
if not isinstance(filename, str):
night, expid, camera = filename
filename = findfile('qa', night, expid, camera)
# Read
qa_data = read_qa_data(filename)
# Instantiate
qaframe = QA_Frame(qa_data)
return qaframe
def _write_qaframes(self):
"""Write QA data frame files"""
frm0 = self._make_frame(camera='b0')
frm1 = self._make_frame(camera='b1')
qafrm0 = QA_Frame(frm0)
qafrm1 = QA_Frame(frm1)
# SKY
qafrm0.init_skysub()
qafrm1.init_skysub()
qafrm0.qa_data['SKYSUB']['METRICS'] = {}
qafrm1.qa_data['SKYSUB']['METRICS'] = {}
qafrm0.qa_data['SKYSUB']['METRICS']['NSKY_FIB'] = 10
qafrm1.qa_data['SKYSUB']['METRICS']['NSKY_FIB'] = 30
# FLUX
qafrm0.init_fluxcalib()
qafrm1.init_fluxcalib()
qafrm0.qa_data['FLUXCALIB']['METRICS'] = {}
qafrm0.qa_data['FLUXCALIB']['METRICS']['ZP'] = 24.
qafrm0.qa_data['FLUXCALIB']['METRICS']['RMS_ZP'] = 0.05
qafrm1.qa_data['FLUXCALIB']['METRICS'] = {}
qafrm1.qa_data['FLUXCALIB']['METRICS']['ZP'] = 24.5
qafrm1.qa_data['FLUXCALIB']['METRICS']['RMS_ZP'] = 0.05
# WRITE
write_qa_frame(self.qafile_b0, qafrm0)
write_qa_frame(self.qafile_b1, qafrm1)
def test_init_qa_frame(self):
#- Simple Init call
qafrm1 = QA_Frame(self._make_frame(flavor='science'))
assert qafrm1.flavor == 'science'