def wrapper(*args, **kwd):
# Grab the logging keyword, if it is present.
log_result = kwd.pop(_LOG_ARGUMENT, True)
result = func(*args, **kwd)
if not log_result:
# No need to add metadata....
meta_dict = {}
elif log_result is not True:
meta_dict = _metadata_to_dict(log_result)
else:
# Logging is not turned off, but user did not provide a value
# so construct one.
key = func.__name__
all_args = chain(zip(original_positional_args, args),
six.iteritems(kwd))
all_args = ["{0}={1}".format(name,
_replace_array_with_placeholder(val))
for name, val in all_args]
log_val = ", ".join(all_args)
log_val = log_val.replace("\n", "")
meta_dict = {key: log_val}
for k, v in six.iteritems(meta_dict):
result._insert_in_metadata_fits_safe(k, v)
return result
def average_pols(block):
"""
Average the polarizations for each feed in each IF
"""
# will have names like "(IFnum)(feed)"
averaged_pol_dict = {}
ifdict = find_matched_freqs(block)
feeddict = find_feeds(block)
IDs = identify_samplers(block)
for ifnum, ifsampler in iteritems(ifdict):
for sampler, feednum in iteritems(feeddict):
if sampler not in ifsampler:
continue
newname = "if%ifd%i" % (ifnum, feednum)
matched_samplers = [
sampler_name for (sampler_name, ID) in iteritems(IDs)
if ID['feed'] == feednum and ID['IF'] == ifnum
]
if len(matched_samplers) != 2:
raise ValueError("Too few/many matches: %s" % matched_samplers)
if newname not in averaged_pol_dict:
average = (block[matched_samplers[0]] +
block[matched_samplers[1]]) / 2.
averaged_pol_dict[newname] = average
return averaged_pol_dict
def wrapper(*args, **kwd):
# Grab the logging keyword, if it is present.
log_result = kwd.pop(_LOG_ARGUMENT, False)
result = func(*args, **kwd)
if log_result is None:
# No need to add metadata....
meta_dict = {}
elif log_result:
meta_dict = _metadata_to_dict(log_result)
elif log_result is not None:
# Logging is not turned off, but user did not provide a value
# so construct one.
key = func.__name__
pos_args = [
"{0}={1}".format(arg_name,
_replace_array_with_placeholder(arg_value))
for arg_name, arg_value in zip(original_positional_args, args)
]
kwd_args = [
"{0}={1}".format(k, _replace_array_with_placeholder(v))
for k, v in six.iteritems(kwd)
]
pos_args.extend(kwd_args)
log_val = ", ".join(pos_args)
log_val = log_val.replace("\n", "")
meta_dict = {key: log_val}
for k, v in six.iteritems(meta_dict):
result._insert_in_metadata_fits_safe(k, v)
return result
def average_pols(block):
"""
Average the polarizations for each feed in each IF
"""
# will have names like "(IFnum)(feed)"
averaged_pol_dict = {}
ifdict = find_matched_freqs(block)
feeddict = find_feeds(block)
IDs = identify_samplers(block)
for ifnum,ifsampler in iteritems(ifdict):
for sampler,feednum in iteritems(feeddict):
if sampler not in ifsampler:
continue
newname = "if%ifd%i" % (ifnum, feednum)
matched_samplers = [sampler_name for (sampler_name,ID) in iteritems(IDs)
if ID['feed'] == feednum and ID['IF'] == ifnum]
if len(matched_samplers) != 2:
raise ValueError("Too few/many matches: %s" % matched_samplers)
if newname not in averaged_pol_dict:
average = (block[matched_samplers[0]] + block[matched_samplers[1]]) / 2.
averaged_pol_dict[newname] = average
return averaged_pol_dict
def wrapper(*args, **kwd):
# Grab the logging keyword, if it is present.
log_result = kwd.pop(_LOG_ARGUMENT, False)
result = func(*args, **kwd)
if log_result is None:
# No need to add metadata....
meta_dict = {}
elif log_result:
meta_dict = _metadata_to_dict(log_result)
elif log_result is not None:
# Logging is not turned off, but user did not provide a value
# so construct one.
key = func.__name__
pos_args = ["{0}={1}".format(arg_name,
_replace_array_with_placeholder(arg_value))
for arg_name, arg_value
in zip(original_positional_args, args)]
kwd_args = ["{0}={1}".format(k, _replace_array_with_placeholder(v))
for k, v in six.iteritems(kwd)]
pos_args.extend(kwd_args)
log_val = ", ".join(pos_args)
log_val = log_val.replace("\n", "")
meta_dict = {key: log_val}
for k, v in six.iteritems(meta_dict):
result._insert_in_metadata_fits_safe(k, v)
return result
def plot_nh3(spdict, spectra, fignum=1, show_components=False,
residfignum=None, show_hyperfine_components=True, annotate=True,
axdict=None, figure=None,
**plotkwargs):
"""
Plot the results from a multi-nh3 fit
spdict needs to be dictionary with form:
'oneone': spectrum,
'twotwo': spectrum,
etc.
"""
from matplotlib import pyplot
if figure is None:
spectra.plotter.figure = pyplot.figure(fignum)
spectra.plotter.axis = spectra.plotter.figure.gca()
splist = spdict.values()
for transition, sp in spdict.items():
sp.xarr.convert_to_unit('km/s', velocity_convention='radio',
refX=pyspeckit.spectrum.models.ammonia.freq_dict[transition]*u.Hz,
quiet=True)
sp.specfit.fitter = copy.copy(spectra.specfit.fitter)
sp.specfit.modelpars = spectra.specfit.modelpars
sp.specfit.parinfo = spectra.specfit.parinfo
sp.specfit.npeaks = spectra.specfit.npeaks
sp.specfit.fitter.npeaks = spectra.specfit.npeaks
if spectra.specfit.modelpars is not None:
sp.specfit.model = sp.specfit.fitter.n_ammonia(pars=spectra.specfit.modelpars, parnames=spectra.specfit.fitter.parnames)(sp.xarr)
if axdict is None:
axdict = make_axdict(splist, spdict)
for linename, sp in iteritems(spdict):
if linename not in axdict:
raise NotImplementedError("Plot windows for {0} cannot "
"be automatically arranged (yet)."
.format(linename))
sp.plotter.axis=axdict[linename] # permanent
sp.plotter(axis=axdict[linename], title=title_dict[linename], **plotkwargs)
sp.specfit.Spectrum.plotter = sp.plotter
sp.specfit.selectregion(reset=True)
if sp.specfit.modelpars is not None:
sp.specfit.plot_fit(annotate=False, show_components=show_components,
show_hyperfine_components=show_hyperfine_components)
if spdict['oneone'].specfit.modelpars is not None and annotate:
spdict['oneone'].specfit.annotate(labelspacing=0.05,
prop={'size':'small',
'stretch':'extra-condensed'},
frameon=False)
if residfignum is not None:
pyplot.figure(residfignum)
pyplot.clf()
axdict = make_axdict(splist, spdict)
for linename, sp in iteritems(spdict):
sp.specfit.plotresiduals(axis=axdict[linename])
def plot_nh3(spdict, spectra, fignum=1, show_components=False,
residfignum=None, show_hyperfine_components=True, annotate=True,
**plotkwargs):
"""
Plot the results from a multi-nh3 fit
spdict needs to be dictionary with form:
'oneone': spectrum,
'twotwo': spectrum,
etc.
"""
spectra.plotter.figure = pyplot.figure(fignum)
spectra.plotter.axis = spectra.plotter.figure.gca()
pyplot.clf()
splist = spdict.values()
for transition, sp in spdict.items():
sp.xarr.convert_to_unit('km/s', velocity_convention='radio',
refX=pyspeckit.spectrum.models.ammonia.freq_dict[transition]*u.Hz,
quiet=True)
sp.specfit.fitter = copy.copy(spectra.specfit.fitter)
sp.specfit.modelpars = spectra.specfit.modelpars
sp.specfit.parinfo = spectra.specfit.parinfo
sp.specfit.npeaks = spectra.specfit.npeaks
sp.specfit.fitter.npeaks = spectra.specfit.npeaks
if spectra.specfit.modelpars is not None:
sp.specfit.model = sp.specfit.fitter.n_ammonia(pars=spectra.specfit.modelpars, parnames=spectra.specfit.fitter.parnames)(sp.xarr)
axdict = make_axdict(splist, spdict)
for linename, sp in iteritems(spdict):
if linename not in axdict:
raise NotImplementedError("Plot windows for {0} cannot "
"be automatically arranged (yet)."
.format(linename))
sp.plotter.axis=axdict[linename] # permanent
sp.plotter(axis=axdict[linename], title=title_dict[linename], **plotkwargs)
sp.specfit.Spectrum.plotter = sp.plotter
sp.specfit.selectregion(reset=True)
if sp.specfit.modelpars is not None:
sp.specfit.plot_fit(annotate=False, show_components=show_components,
show_hyperfine_components=show_hyperfine_components)
if spdict['oneone'].specfit.modelpars is not None and annotate:
spdict['oneone'].specfit.annotate(labelspacing=0.05,
prop={'size':'small',
'stretch':'extra-condensed'},
frameon=False)
if residfignum is not None:
pyplot.figure(residfignum)
pyplot.clf()
axdict = make_axdict(splist, spdict)
for linename, sp in iteritems(spdict):
sp.specfit.plotresiduals(axis=axdict[linename])
def set_test_files(self):
"""
A set of file is created from the dictionary below; the number
of files of each type is set by the 'number' key.
"""
bias = 'BIAS'
dark = 'DARK'
flat = 'FLAT'
light = 'LIGHT'
files = {bias: 5,
dark: {20.0: 5,
30.0: 5},
flat: {'R': {17.0: 3},
'V': {15.0: 2,
25.0: 2},
'I': {17.0: 5}},
light: {'m81': {'R': {17.0: 3},
'V': {17.0: 2}},
'm101': {'I': {17.0: 5}},
None: {'I': {17.0: 2},
'R': {17.0: 3},
'V': {17.0: 4}}}
}
data = np.random.random([100, 100])
make_hdu = lambda im_type: \
fits.PrimaryHDU(data,
fits.Header.fromkeys(['imagetyp'], value=im_type))
make_file_names = lambda base, number: \
[base + str(i) + '.fit' for i in range(number)]
bias_names = make_file_names(bias, files[bias])
bias_hdu = make_hdu(bias)
self.write_names(bias_hdu, bias_names)
for exp, number in six.iteritems(files[dark]):
dark_hdu = make_hdu(dark)
dark_hdu.header['exptime'] = exp
dark_names = make_file_names(dark + str(exp), number)
self.write_names(dark_hdu, dark_names)
flat_hdu = make_hdu(flat)
self.make_filter_exp(flat_hdu, files[flat])
light_hdu = make_hdu(light)
for obj, filter_dict in six.iteritems(files[light]):
if not obj:
try:
del light_hdu.header['object']
except KeyError:
pass
else:
light_hdu.header['object'] = obj
obj_name = obj or None
self.make_filter_exp(light_hdu, filter_dict, extra_name=obj_name)
return files
def _json_summary_to_table(self, data, base_url):
"""
"""
columns = {'uid':[], 'URL':[], 'size':[]}
for entry in data['node_data']:
if entry['file_name'] != 'null':
# "de_name": "ALMA+uid://A001/X122/X35e",
columns['uid'].append(entry['de_name'][5:])
columns['size'].append((int(entry['file_size'])*u.B).to(u.Gbyte))
# example template for constructing url:
# https://almascience.eso.org/dataPortal/requests/keflavich/940238268/ALMA/
# uid___A002_X9d6f4c_X154/2013.1.00546.S_uid___A002_X9d6f4c_X154.asdm.sdm.tar
# above is WRONG
# should be:
# 2013.1.00546.S_uid___A002_X9d6f4c_X154.asdm.sdm.tar/2013.1.00546.S_uid___A002_X9d6f4c_X154.asdm.sdm.tar
url = os.path.join(base_url,
entry['file_name'],
entry['file_name'],
)
columns['URL'].append(url)
columns['size'] = u.Quantity(columns['size'], u.Gbyte)
tbl = Table([Column(name=k, data=v) for k,v in iteritems(columns)])
return tbl
def make_argparser():
"""
Most of the real work is handled by the subcommands in the
commands subpackage.
"""
def help(args):
parser.print_help()
return 0
parser = argparse.ArgumentParser(
"asdftool",
description="Commandline utilities for managing ASDF files.")
parser.add_argument(
"--verbose", "-v", action="store_true",
help="Increase verbosity")
subparsers = parser.add_subparsers(
title='subcommands',
description='valid subcommands')
help_parser = subparsers.add_parser(
str("help"), help="Display usage information")
help_parser.set_defaults(func=help)
commands = dict((x.__name__, x) for x in util.iter_subclasses(Command))
for command in command_order:
commands[str(command)].setup_arguments(subparsers)
del commands[command]
for name, command in sorted(six.iteritems(commands)):
command.setup_arguments(subparsers)
return parser, subparsers
def read_snana_ascii_multi(fnames, default_tablename=None):
"""Like ``read_snana_ascii()``, but read from multiple files containing
the same tables and glue results together into big tables.
Parameters
----------
fnames : list of str
List of filenames.
Returns
-------
tables : dictionary of `~astropy.table.Table`
Tables indexed by table names.
Examples
--------
>>> tables = read_snana_ascii_multi(['data1.txt', 'data1.txt'])
"""
alltables = {}
for fname in fnames:
meta, tables = read_snana_ascii(fname,
default_tablename=default_tablename)
for key, table in six.iteritems(tables):
if key in alltables:
alltables[key].append(table)
else:
alltables[key] = [table]
for key in alltables.keys():
alltables[key] = vstack(alltables[key])
return alltables
def get_loaders_metadata(data_class):
"""Return the metadata of all registered loaders for a given class.
Parameters
----------
data_class : classobj
Returns
-------
loadermeta : list of dict
Each item in the list is a dictionary containing a 'name'
keyword, a 'version' keyword (if applicable), and the metadata
keywords for the given loader.
"""
loaders_metadata = []
for lkey, loader in six.iteritems(_loaders):
if lkey[0] is not data_class:
continue
m = {'name': lkey[1]}
if len(lkey) > 2:
m['version'] = lkey[2]
m.update(loader[2])
loaders_metadata.append(m)
return loaders_metadata
def _json_summary_to_table(self, data, base_url):
"""
"""
columns = {'uid':[], 'URL':[], 'size':[]}
for entry in data['node_data']:
is_file = (entry['de_type'] == 'MOUS'
or (entry['file_name'] != 'null'
and entry['file_key'] != 'null'))
if is_file:
# "de_name": "ALMA+uid://A001/X122/X35e",
columns['uid'].append(entry['de_name'][5:])
columns['size'].append((int(entry['file_size'])*u.B).to(u.Gbyte))
# example template for constructing url:
# https://almascience.eso.org/dataPortal/requests/keflavich/940238268/ALMA/
# uid___A002_X9d6f4c_X154/2013.1.00546.S_uid___A002_X9d6f4c_X154.asdm.sdm.tar
# above is WRONG... except for ASDMs, when it's right
# should be:
# 2013.1.00546.S_uid___A002_X9d6f4c_X154.asdm.sdm.tar/2013.1.00546.S_uid___A002_X9d6f4c_X154.asdm.sdm.tar
#
# apparently ASDMs are different from others:
# templates:
# https://almascience.eso.org/dataPortal/requests/keflavich/946895898/ALMA/
# 2013.1.00308.S_uid___A001_X196_X93_001_of_001.tar/2013.1.00308.S_uid___A001_X196_X93_001_of_001.tar
# uid___A002_X9ee74a_X26f0/2013.1.00308.S_uid___A002_X9ee74a_X26f0.asdm.sdm.tar
url = os.path.join(base_url,
entry['file_key'],
entry['file_name'],
)
columns['URL'].append(url)
columns['size'] = u.Quantity(columns['size'], u.Gbyte)
tbl = Table([Column(name=k, data=v) for k,v in iteritems(columns)])
return tbl
def action(self):
self.progress_bar.visible = True
self.progress_bar.value = 1.0
self.progress_bar.layout.visbility = 'visible'
self.progress_bar.layout.display = 'flex'
# Refresh image collection in case files were added after widget was
# created.
self.image_source.refresh()
groups_to_combine = self._group_by.groups(self.apply_to)
n_groups = len(groups_to_combine)
for idx, combo_group in enumerate(groups_to_combine):
self.progress_bar.description = \
("Processing {} of {} "
"(may take several minutes)".format(idx + 1, n_groups))
combined = self._action_for_one_group(combo_group)
name_addons = ['_'.join([str(k), str(v)])
for k, v in six.iteritems(combo_group)]
fname = [self._file_base_name]
fname.extend(name_addons)
fname = '_'.join(fname) + '.fit'
dest_path = os.path.join(self.destination, fname)
combined.write(dest_path)
self._combined = combined
self.progress_bar.visible = False
self.progress_bar.layout.display = 'none'
def validate_fill_default(validator, properties, instance, schema):
if not validator.is_type(instance, 'object'):
return
for property, subschema in six.iteritems(properties):
if "default" in subschema:
instance.setdefault(property, subschema["default"])
def _get_default_form_values(self, form):
"""Return the already selected values of a given form (a BeautifulSoup
form node) as a dict.
"""
res = defaultdict(list)
for elem in form.find_all(['input', 'select']):
key = elem.get('name')
value = None
# ignore the submit and reset buttons
if elem.get('type') in ['submit', 'reset']:
continue
# check boxes: enabled boxes have the value "on" if not specified
# otherwise. Found out by debugging, perhaps not documented.
if (elem.get('type') == 'checkbox'
and elem.get('checked') in ["", "checked"]):
value = elem.get('value', 'on')
# radio buttons and simple input fields
if elem.get('type') == 'radio' and\
elem.get('checked') in ["", "checked"] or\
elem.get('type') in [None, 'text']:
value = elem.get('value')
# dropdown menu, multi-section possible
if elem.name == 'select':
for option in elem.find_all('option'):
if option.get('selected') == '':
value = option.get('value', option.text.strip())
if value and value not in [None, u'None', u'null']:
res[key].append(value)
# avoid values with size 1 lists
d = dict(res)
for k, v in six.iteritems(d):
if len(v) == 1:
d[k] = v[0]
return d
def make_argparser():
"""
Most of the real work is handled by the subcommands in the
commands subpackage.
"""
def help(args):
parser.print_help()
return 0
parser = argparse.ArgumentParser(
"asdftool",
description="Commandline utilities for managing ASDF files.")
parser.add_argument("--verbose",
"-v",
action="store_true",
help="Increase verbosity")
subparsers = parser.add_subparsers(title='subcommands',
description='valid subcommands')
help_parser = subparsers.add_parser(str("help"),
help="Display usage information")
help_parser.set_defaults(func=help)
commands = dict((x.__name__, x) for x in util.iter_subclasses(Command))
for command in command_order:
commands[str(command)].setup_arguments(subparsers)
del commands[command]
for name, command in sorted(six.iteritems(commands)):
command.setup_arguments(subparsers)
return parser, subparsers
def _vo_service_request(url, pedantic, kwargs, cache=True, verbose=False):
"""
This is called by :func:`call_vo_service`.
Raises
------
InvalidAccessURL
Invalid access URL.
"""
if len(kwargs) and not url.endswith(('?', '&')):
raise InvalidAccessURL("url should already end with '?' or '&'")
query = []
for key, value in six.iteritems(kwargs):
query.append('{0}={1}'.format(urllib.parse.quote(key),
urllib.parse.quote_plus(str(value))))
parsed_url = url + '&'.join(query)
with get_readable_fileobj(parsed_url,
encoding='binary',
cache=cache,
show_progress=verbose) as req:
tab = table.parse(req, filename=parsed_url, pedantic=pedantic)
return vo_tab_parse(tab, url, kwargs)
def clear_all_connections(self, debug=False):
"""
Prevent overlapping interactive sessions
"""
# this is really ugly, but needs to be done in order to prevent multiple overlapping calls...
cids_to_remove = []
if not hasattr(self.Spectrum.plotter.figure,'canvas'):
# just quit out; saves a tab...
if debug or self._debug:
print("Didn't find a canvas, quitting.")
return
for eventtype in ('button_press_event','key_press_event'):
for key,val in iteritems(self.Spectrum.plotter.figure.canvas.callbacks.callbacks[eventtype]):
if "event_manager" in val.func.__name__:
cids_to_remove.append(key)
if debug or self._debug: print("Removing CID #%i with attached function %s" % (key,val.func.__name__))
for cid in cids_to_remove:
self.Spectrum.plotter.figure.canvas.mpl_disconnect(cid)
self.Spectrum.plotter._reconnect_matplotlib_keys()
# Click counters - should always be reset!
self.nclicks_b1 = 0 # button 1
self.nclicks_b2 = 0 # button 2
self.Spectrum.plotter._active_gui = None
def _submit_form(self, input=None):
"""Fill out the form of the SkyView site and submit it with the
values given in `input` (a dictionary where the keys are the form
element's names and the values are their respective values).
"""
if input is None:
input = {}
response = self._request("GET",
url=self.FORM_URL,
data={},
timeout=self.TIMEOUT)
bs = BeautifulSoup(response.text)
form = bs.find('form')
# cache the default values to save HTTP traffic
if self._default_form_values is None:
self._default_form_values = self._get_default_form_values(form)
# only overwrite payload's values if the `input` value is not None
# to avoid overwriting of the form's default values
payload = self._default_form_values.copy()
for k, v in six.iteritems(input):
if v is not None:
payload[k] = v
url = urlparse.urljoin(self.FORM_URL, form.get('action'))
response = self._request("POST",
url=url,
data=payload,
timeout=self.TIMEOUT)
return response
def BigSpectrum_to_H2COdict(sp, vrange=None):
"""
A rather complicated way to make the spdicts above given a spectrum...
"""
spdict = {}
for linename, freq in iteritems(
spectrum.models.formaldehyde.central_freq_dict):
if vrange is not None:
freq_test_low = freq - freq * vrange[0] / units.speedoflight_kms
freq_test_high = freq - freq * vrange[1] / units.speedoflight_kms
else:
freq_test_low = freq_test_high = freq
if (sp.xarr.as_unit('Hz').in_range(freq_test_low * u.Hz)
or sp.xarr.as_unit('Hz').in_range(freq_test_high * u.Hz)):
spdict[linename] = sp.copy(deep=True)
spdict[linename].xarr.convert_to_unit('GHz')
spdict[linename].xarr.refX = freq
spdict[linename].xarr.refX_unit = 'Hz'
#spdict[linename].baseline = copy.copy(sp.baseline)
#spdict[linename].baseline.Spectrum = spdict[linename]
spdict[linename].specfit = sp.specfit.copy(parent=spdict[linename])
spdict[linename].xarr.convert_to_unit('km/s')
if vrange is not None:
try:
spdict[linename].crop(*vrange, unit='km/s')
except IndexError:
# if the freq in range, but there's no data in range, remove
spdict.pop(linename)
return spdict
def get_extensions():
wcslib_files = [ # List of wcslib files to compile
'prj.c',
'wcserr.c',
'wcsprintf.c',
'wcsutil.c'
]
wcslib_config_paths = [
join(MODELING_SRC, 'wcsconfig.h')
]
cfg = setup_helpers.DistutilsExtensionArgs()
wcs_setup_package.get_wcslib_cfg(cfg, wcslib_files, wcslib_config_paths)
cfg['include_dirs'].append(MODELING_SRC)
astropy_files = [ # List of astropy.modeling files to compile
'projections.c'
]
cfg['sources'].extend(join(MODELING_SRC, x) for x in astropy_files)
cfg['sources'] = [str(x) for x in cfg['sources']]
cfg = dict((str(key), val) for key, val in six.iteritems(cfg))
return [Extension(str('astropy.modeling._projections'), **cfg)]
def clear_all_connections(self, debug=False):
"""
Prevent overlapping interactive sessions
"""
# this is really ugly, but needs to be done in order to prevent multiple overlapping calls...
cids_to_remove = []
if not hasattr(self.Spectrum.plotter.figure, 'canvas'):
# just quit out; saves a tab...
if debug or self._debug:
print("Didn't find a canvas, quitting.")
return
for eventtype in ('button_press_event', 'key_press_event'):
for key, val in iteritems(self.Spectrum.plotter.figure.canvas.
callbacks.callbacks[eventtype]):
if "event_manager" in val.func.__name__:
cids_to_remove.append(key)
if debug or self._debug:
print("Removing CID #%i with attached function %s" %
(key, val.func.__name__))
for cid in cids_to_remove:
self.Spectrum.plotter.figure.canvas.mpl_disconnect(cid)
self.Spectrum.plotter._reconnect_matplotlib_keys()
# Click counters - should always be reset!
self.nclicks_b1 = 0 # button 1
self.nclicks_b2 = 0 # button 2
self.Spectrum.plotter._active_gui = None
def _write_salt2(f, data, meta, **kwargs):
raw = kwargs.get('raw', False)
pedantic = kwargs.get('pedantic', True)
if meta is not None:
for key, val in six.iteritems(meta):
if not raw:
key = key.upper()
key = KEY_TO_SALT2KEY_META.get(key, key)
f.write('@{0} {1}\n'.format(key, str(val)))
keys = data.dtype.names
length = len(data)
# Write column names
keys_as_written = []
for key in keys:
if not raw:
key = key.capitalize()
key = KEY_TO_SALT2KEY_COLUMN.get(key, key)
f.write('#{0} :\n'.format(key))
keys_as_written.append(key)
f.write('#end :\n')
# Check that necessary fields exist
if pedantic:
if not ('Filter' in keys_as_written and 'MagSys' in keys_as_written):
raise ValueError('photometry data missing required some fields '
': Filter, MagSys')
# Write the data itself
for i in range(length):
f.write(' '.join([str(data[key][i]) for key in keys]))
f.write('\n')
def get_extensions():
generate_c_docstrings()
######################################################################
# DISTUTILS SETUP
cfg = setup_helpers.DistutilsExtensionArgs()
wcslib_files = [ # List of wcslib files to compile
'flexed/wcsbth.c',
'flexed/wcspih.c',
'flexed/wcsulex.c',
'flexed/wcsutrn.c',
'cel.c',
'dis.c',
'lin.c',
'log.c',
'prj.c',
'spc.c',
'sph.c',
'spx.c',
'tab.c',
'wcs.c',
'wcserr.c',
'wcsfix.c',
'wcshdr.c',
'wcsprintf.c',
'wcsunits.c',
'wcsutil.c'
]
wcslib_config_paths = [
join(WCSROOT, 'include', 'astropy_wcs', 'wcsconfig.h'),
join(WCSROOT, 'include', 'wcsconfig.h')
]
get_wcslib_cfg(cfg, wcslib_files, wcslib_config_paths)
cfg['include_dirs'].append(join(WCSROOT, "include"))
astropy_wcs_files = [ # List of astropy.wcs files to compile
'distortion.c',
'distortion_wrap.c',
'docstrings.c',
'pipeline.c',
'pyutil.c',
'astropy_wcs.c',
'astropy_wcs_api.c',
'sip.c',
'sip_wrap.c',
'str_list_proxy.c',
'unit_list_proxy.c',
'util.c',
'wcslib_wrap.c',
'wcslib_tabprm_wrap.c']
cfg['sources'].extend(join(WCSROOT, 'src', x) for x in astropy_wcs_files)
cfg['sources'] = [str(x) for x in cfg['sources']]
cfg = dict((str(key), val) for key, val in six.iteritems(cfg))
return [Extension(str('astropy.wcs._wcs'), **cfg)]
def _write_salt2(f, data, meta, **kwargs):
raw = kwargs.get('raw', False)
pedantic = kwargs.get('pedantic', True)
if meta is not None:
for key, val in six.iteritems(meta):
if not raw:
key = key.upper()
key = KEY_TO_SALT2KEY_META.get(key, key)
f.write('@{0} {1}\n'.format(key, str(val)))
keys = data.dtype.names
length = len(data)
# Write column names
keys_as_written = []
for key in keys:
if not raw:
key = key.capitalize()
key = KEY_TO_SALT2KEY_COLUMN.get(key, key)
f.write('#{0} :\n'.format(key))
keys_as_written.append(key)
f.write('#end :\n')
# Check that necessary fields exist
if pedantic:
if not ('Filter' in keys_as_written and 'MagSys' in keys_as_written):
raise ValueError('photometry data missing required some fields '
': Filter, MagSys')
# Write the data itself
for i in range(length):
f.write(' '.join([str(data[key][i]) for key in keys]))
f.write('\n')
def get_loaders_metadata(data_class):
"""Return the metadata of all registered loaders for a given class.
Parameters
----------
data_class : classobj
Returns
-------
loadermeta : list of dict
Each item in the list is a dictionary containing a 'name'
keyword, a 'version' keyword (if applicable), and the metadata
keywords for the given loader.
"""
loaders_metadata = []
for lkey, loader in six.iteritems(_loaders):
if lkey[0] is not data_class:
continue
m = {'name': lkey[1]}
if len(lkey) > 2:
m['version'] = lkey[2]
m.update(loader[2])
loaders_metadata.append(m)
return loaders_metadata
def fc_construct_acceptance_intervals(distribution_dict, bins, alpha):
r"""Convenience function that calculates the PDF for the user.
For more information see :ref:`documentation <feldman_cousins>`.
Parameters
----------
distribution_dict : dict
Keys are mu values and value is an array-like list of x values
bins : array-like
The bins the x distribution will have
alpha : float
Desired confidence level
Returns
-------
acceptance_intervals : ndarray
Acceptance intervals (1 means inside, 0 means outside)
"""
distributions_scaled = []
# Histogram gets rid of the last bin, so add one extra
bin_width = bins[1] - bins[0]
new_bins = np.concatenate((bins, np.array([bins[-1] + bin_width])), axis=0)
# Histogram and normalise each distribution so it is a real PDF
for mu, distribution in iter(sorted(iteritems(distribution_dict))):
entries = np.histogram(distribution, bins=new_bins)[0]
integral = float(sum(entries))
distributions_scaled.append(entries / integral)
acceptance_intervals = fc_construct_acceptance_intervals_pdfs(distributions_scaled, alpha)
return acceptance_intervals
def _submit_form(self, input=None):
"""Fill out the form of the SkyView site and submit it with the
values given in `input` (a dictionary where the keys are the form
element's names and the values are their respective values).
"""
if input is None:
input = {}
response = self._request("GET", url=self.FORM_URL, data={},
timeout=self.TIMEOUT)
bs = BeautifulSoup(response.text)
form = bs.find('form')
# cache the default values to save HTTP traffic
if self._default_form_values is None:
self._default_form_values = self._get_default_form_values(form)
# only overwrite payload's values if the `input` value is not None
# to avoid overwriting of the form's default values
payload = self._default_form_values.copy()
for k, v in six.iteritems(input):
if v is not None:
payload[k] = v
url = urlparse.urljoin(self.FORM_URL, form.get('action'))
response = self._request("POST", url=url, data=payload,
timeout=self.TIMEOUT)
return response
def _get_default_form_values(self, form):
"""Return the already selected values of a given form (a BeautifulSoup
form node) as a dict.
"""
res = defaultdict(list)
for elem in form.find_all(['input', 'select']):
key = elem.get('name')
value = None
# ignore the submit and reset buttons
if elem.get('type') in ['submit', 'reset']:
continue
# check boxes: enabled boxes have the value "on" if not specified
# otherwise. Found out by debugging, perhaps not documented.
if (elem.get('type') == 'checkbox' and
elem.get('checked') in ["", "checked"]):
value = elem.get('value', 'on')
# radio buttons and simple input fields
if elem.get('type') == 'radio' and\
elem.get('checked') in ["", "checked"] or\
elem.get('type') in [None, 'text']:
value = elem.get('value')
# dropdown menu, multi-section possible
if elem.name == 'select':
for option in elem.find_all('option'):
if option.get('selected') == '':
value = option.get('value', option.text.strip())
if value and value not in [None, u'None', u'null']:
res[key].append(value)
# avoid values with size 1 lists
d = dict(res)
for k, v in six.iteritems(d):
if len(v) == 1:
d[k] = v[0]
return d
def validate_fill_default(validator, properties, instance, schema):
if not validator.is_type(instance, 'object'):
return
for property, subschema in six.iteritems(properties):
if "default" in subschema:
instance.setdefault(property, subschema["default"])
def get_extensions():
generate_c_docstrings()
######################################################################
# DISTUTILS SETUP
cfg = setup_helpers.DistutilsExtensionArgs()
wcslib_files = [ # List of wcslib files to compile
'flexed/wcsbth.c',
'flexed/wcspih.c',
'flexed/wcsulex.c',
'flexed/wcsutrn.c',
'cel.c',
'dis.c',
'lin.c',
'log.c',
'prj.c',
'spc.c',
'sph.c',
'spx.c',
'tab.c',
'wcs.c',
'wcserr.c',
'wcsfix.c',
'wcshdr.c',
'wcsprintf.c',
'wcsunits.c',
'wcsutil.c'
]
wcslib_config_paths = [
join(WCSROOT, 'include', 'astropy_wcs', 'wcsconfig.h'),
join(WCSROOT, 'include', 'wcsconfig.h')
]
get_wcslib_cfg(cfg, wcslib_files, wcslib_config_paths)
cfg['include_dirs'].append(join(WCSROOT, "include"))
astropy_wcs_files = [ # List of astropy.wcs files to compile
'distortion.c',
'distortion_wrap.c',
'docstrings.c',
'pipeline.c',
'pyutil.c',
'astropy_wcs.c',
'astropy_wcs_api.c',
'sip.c',
'sip_wrap.c',
'str_list_proxy.c',
'unit_list_proxy.c',
'util.c',
'wcslib_wrap.c',
'wcslib_tabprm_wrap.c']
cfg['sources'].extend(join(WCSROOT, 'src', x) for x in astropy_wcs_files)
cfg['sources'] = [str(x) for x in cfg['sources']]
cfg = dict((str(key), val) for key, val in six.iteritems(cfg))
return [Extension(str('astropy.wcs._wcs'), **cfg)]
def BigSpectrum_to_H2COdict(sp, vrange=None):
"""
A rather complicated way to make the spdicts above given a spectrum...
"""
spdict = {}
for linename,freq in iteritems(spectrum.models.formaldehyde.central_freq_dict):
if vrange is not None:
freq_test_low = freq - freq * vrange[0]/units.speedoflight_kms
freq_test_high = freq - freq * vrange[1]/units.speedoflight_kms
else:
freq_test_low = freq_test_high = freq
if (sp.xarr.as_unit('Hz').in_range(freq_test_low*u.Hz) or
sp.xarr.as_unit('Hz').in_range(freq_test_high*u.Hz)):
spdict[linename] = sp.copy(deep=True)
spdict[linename].xarr.convert_to_unit('GHz')
spdict[linename].xarr.refX = freq
spdict[linename].xarr.refX_unit = 'Hz'
#spdict[linename].baseline = copy.copy(sp.baseline)
#spdict[linename].baseline.Spectrum = spdict[linename]
spdict[linename].specfit = sp.specfit.copy(parent=spdict[linename])
spdict[linename].xarr.convert_to_unit('km/s')
if vrange is not None:
try:
spdict[linename].crop(*vrange, unit='km/s')
except IndexError:
# if the freq in range, but there's no data in range, remove
spdict.pop(linename)
return spdict
def action(self):
self.progress_bar.visible = True
self.progress_bar.value = 1.0
self.progress_bar.layout.visbility = 'visible'
self.progress_bar.layout.display = 'flex'
# Refresh image collection in case files were added after widget was
# created.
self.image_source.refresh()
groups_to_combine = self._group_by.groups(self.apply_to)
n_groups = len(groups_to_combine)
for idx, combo_group in enumerate(groups_to_combine):
self.progress_bar.description = \
("Processing {} of {} "
"(may take several minutes)".format(idx + 1, n_groups))
combined = self._action_for_one_group(combo_group)
name_addons = [
'_'.join([str(k), str(v)])
for k, v in six.iteritems(combo_group)
]
fname = [self._file_base_name]
fname.extend(name_addons)
fname = '_'.join(fname) + '.fit'
dest_path = os.path.join(self.destination, fname)
combined.write(dest_path)
self._combined = combined
self.progress_bar.visible = False
self.progress_bar.layout.display = 'none'
def read_snana_ascii_multi(fnames, default_tablename=None):
"""Like ``read_snana_ascii()``, but read from multiple files containing
the same tables and glue results together into big tables.
Parameters
----------
fnames : list of str
List of filenames.
Returns
-------
tables : dictionary of `~astropy.table.Table`
Tables indexed by table names.
Examples
--------
>>> tables = read_snana_ascii_multi(['data1.txt', 'data1.txt'])
"""
alltables = {}
for fname in fnames:
meta, tables = read_snana_ascii(fname,
default_tablename=default_tablename)
for key, table in six.iteritems(tables):
if key in alltables:
alltables[key].append(table)
else:
alltables[key] = [table]
for key in alltables.keys():
alltables[key] = vstack(alltables[key])
return alltables
def _set_column_name_case_to_match_keywords(self, header_keys, summary_table):
key_name_dict = {k.lower(): k for k in header_keys if k != k.lower()}
for lcase, user_case in six.iteritems(key_name_dict):
try:
summary_table.rename_column(lcase, user_case)
except KeyError:
pass
def from_custom_type(cls, custom_type):
try:
return cls._type_by_cls[custom_type]
except KeyError:
for key, val in six.iteritems(cls._type_by_cls):
if issubclass(custom_type, key):
return val
return None
def read_lmv_tofits(fn):
from astropy.io import fits
data,header = read_lmv(fn)
cards = [fits.header.Card(k,v) for k,v in iteritems(header)]
Header = fits.Header(cards)
hdu = fits.PrimaryHDU(data=data, header=Header)
return hdu
def recurse(a, b):
if isinstance(b, dict):
if not isinstance(a, dict):
return copy.deepcopy(b)
for key, val in six.iteritems(b):
a[key] = recurse(a.get(key), val)
return a
return copy.deepcopy(b)
def validate_remove_default(validator, properties, instance, schema):
if not validator.is_type(instance, 'object'):
return
for property, subschema in six.iteritems(properties):
if "default" in subschema:
if instance.get(property, None) == subschema["default"]:
del instance[property]
def read_lmv_tofits(fn):
from astropy.io import fits
data, header = read_lmv(fn)
cards = [fits.header.Card(k, v) for k, v in iteritems(header)]
Header = fits.Header(cards)
hdu = fits.PrimaryHDU(data=data, header=Header)
return hdu
def recurse(a, b):
if isinstance(b, dict):
if not isinstance(a, dict):
return copy.deepcopy(b)
for key, val in six.iteritems(b):
a[key] = recurse(a.get(key), val)
return a
return copy.deepcopy(b)
def validate_remove_default(validator, properties, instance, schema):
if not validator.is_type(instance, 'object'):
return
for property, subschema in six.iteritems(properties):
if "default" in subschema:
if instance.get(property, None) == subschema["default"]:
del instance[property]
def find_lines(xarr):
"""
Given a :class:`pyspeckit.units.SpectrosopicAxis` instance, finds all the
lines that are in bounds. Returns a list of line names.
"""
return [
linename for (linename, lam) in iteritems(wavelength)
if xarr.as_unit('micron').in_range(lam)
]
def _str_index(self):
idx = self['index']
out = []
out += ['.. index:: %s' % idx.get('default','')]
for section, references in iteritems(idx):
if section == 'default':
continue
out += [' :%s: %s' % (section, ', '.join(references))]
return out
def _str_index(self):
idx = self['index']
out = []
out += ['.. index:: %s' % idx.get('default', '')]
for section, references in iteritems(idx):
if section == 'default':
continue
out += [' :%s: %s' % (section, ', '.join(references))]
return out
def _set_column_name_case_to_match_keywords(self, header_keys,
summary_table):
key_name_dict = {k.lower(): k for k in header_keys if k != k.lower()}
for lcase, user_case in six.iteritems(key_name_dict):
try:
summary_table.rename_column(lcase, user_case)
except KeyError:
pass
def _walk_dict_string_keys(self, d, parent=None):
if parent is None:
parent = []
for key, val in six.iteritems(d):
new_parent = list(parent) + [str(key)]
if isinstance(val, dict):
for d in self._walk_dict_string_keys(val, parent=new_parent):
yield d
else:
yield new_parent, val
def add_constraints(self, new_constraints):
"""Add a set of constraints to the current constraints."""
try:
constraints = self.constraints
except AttributeError:
constraints = {}
self.constraints = constraints
for constraint, value in six.iteritems(new_constraints):
constraints[constraint] = constraints.get(constraint, value)
def add_constraints(self, new_constraints):
"""Add a set of constraints to the current constraints."""
try:
constraints = self.constraints
except AttributeError:
constraints = {}
self.constraints = constraints
for constraint, value in six.iteritems(new_constraints):
constraints[constraint] = constraints.get(constraint, value)
def make_filter_exp(self, hdu, filter_dict, extra_name=None):
add_to_name = extra_name or ''
hdr = hdu.header
make_base = lambda hdr, band: \
hdr['imagetyp'] + add_to_name + band + str(hdr['exptime'])
for band, num_or_exp_dict in six.iteritems(filter_dict):
hdr['filter'] = band
if isinstance(num_or_exp_dict, dict):
for exp, number in six.iteritems(num_or_exp_dict):
hdr['exptime'] = exp
base = make_base(hdr, band)
print(base)
self.write_names(hdu, [base + str(i) + '.fit' for i in range(number)])
else:
hdr['exptime'] = 17.0
base = make_base(hdr, band)
print(base)
print(hdr['imagetyp'])
self.write_names(hdu, [base + str(i) + '.fit' for i in range(num_or_exp_dict)])
def _write_snana(f, data, meta, **kwargs):
raw = kwargs.get("raw", False)
pedantic = kwargs.get("pedantic", True)
# Write metadata
keys_as_written = []
if meta is not None:
for key, val in six.iteritems(meta):
if not raw:
key = key.upper()
key = KEY_TO_SNANAKEY_META.get(key, key)
f.write("{0}: {1}\n".format(key, str(val)))
keys_as_written.append(key)
# Check that necessary metadata was written
if pedantic:
for key in SNANA_REQUIRED_META:
if key not in keys_as_written:
raise ValueError("Missing required metadata kw: " + key)
# Get column names and data length
keys = data.dtype.names
length = len(data)
# Convert column names
keys_to_write = []
for key in keys:
if not raw:
key = key.upper()
key = KEY_TO_SNANAKEY_COLUMN.get(key, key)
keys_to_write.append(key)
# Check that necessary column names are included
if pedantic:
for key in SNANA_REQUIRED_COLUMN:
if key not in keys_to_write:
raise ValueError("Missing required column name: " + key)
# Write the header
f.write(
"\n"
"# ==========================================\n"
"# TERSE LIGHT CURVE OUTPUT:\n"
"#\n"
"NOBS: {0:d}\n"
"NVAR: {1:d}\n"
"VARLIST: {2}\n".format(length, len(keys), " ".join(keys_to_write))
)
# Write data
for i in range(length):
f.write("OBS: ")
f.write(" ".join([str(data[key][i]) for key in keys]))
f.write("\n")
def _pack_params(p):
params = p.copy()
for key, item in six.iteritems(p):
if hasattr(item, 'unit'):
params[key] = item.value
params[key + '_unit'] = str(item.unit)
if hasattr(params[key], 'tolist'): # convert array to list
params[key] = params[key].tolist()
return params
def _set_titles(self):
"""
Set titles for accordions.
This should apparently be done *before* the widget is displayed.
"""
for name, obj in six.iteritems(self._gui_objects):
if isinstance(obj, Accordion):
for idx, child in enumerate(obj.children):
if not isinstance(child, widgets.Select):
obj.set_title(idx, child.description)
def recurse(tree, path=[]):
if isinstance(tree, dict):
for key, val in six.iteritems(tree):
for x in recurse(val, path + [key]):
yield x
elif isinstance(tree, (list, tuple)):
for i, val in enumerate(tree):
for x in recurse(val, path + [i]):
yield x
elif tree is not None:
yield (str('.'.join(six.text_type(x) for x in path)), tree)
def recurse(tree, path=[]):
if isinstance(tree, dict):
for key, val in six.iteritems(tree):
for x in recurse(val, path + [key]):
yield x
elif isinstance(tree, (list, tuple)):
for i, val in enumerate(tree):
for x in recurse(val, path + [i]):
yield x
elif tree is not None:
yield ('.'.join(six.text_type(x) for x in path), tree)
def _write_snana(f, data, meta, **kwargs):
raw = kwargs.get('raw', False)
pedantic = kwargs.get('pedantic', True)
# Write metadata
keys_as_written = []
if meta is not None:
for key, val in six.iteritems(meta):
if not raw:
key = key.upper()
key = KEY_TO_SNANAKEY_META.get(key, key)
f.write('{0}: {1}\n'.format(key, str(val)))
keys_as_written.append(key)
# Check that necessary metadata was written
if pedantic:
for key in SNANA_REQUIRED_META:
if key not in keys_as_written:
raise ValueError('Missing required metadata kw: ' + key)
# Get column names and data length
keys = data.dtype.names
length = len(data)
# Convert column names
keys_to_write = []
for key in keys:
if not raw:
key = key.upper()
key = KEY_TO_SNANAKEY_COLUMN.get(key, key)
keys_to_write.append(key)
# Check that necessary column names are included
if pedantic:
for key in SNANA_REQUIRED_COLUMN:
if key not in keys_to_write:
raise ValueError('Missing required column name: ' + key)
# Write the header
f.write('\n'
'# ==========================================\n'
'# TERSE LIGHT CURVE OUTPUT:\n'
'#\n'
'NOBS: {0:d}\n'
'NVAR: {1:d}\n'
'VARLIST: {2}\n'.format(length, len(keys),
' '.join(keys_to_write)))
# Write data
for i in range(length):
f.write('OBS: ')
f.write(' '.join([str(data[key][i]) for key in keys]))
f.write('\n')
def _set_titles(self):
"""
Set titles for accordions.
This should apparently be done *before* the widget is displayed.
"""
for name, obj in six.iteritems(self._gui_objects):
if isinstance(obj, Accordion):
for idx, child in enumerate(obj.children):
if not isinstance(child, widgets.Select):
obj.set_title(idx, child.description)
def _insert_in_metadata(metadata, arg):
if isinstance(arg, basestring):
# add the key, no value
metadata[arg] = None
elif isinstance(arg, ccdproc.ccdproc.Keyword):
metadata[arg.name] = arg.value
else:
try:
for k, v in six.iteritems(arg):
metadata[k] = v
except AttributeError:
raise
def _save_extra_fits(hdulist, tree):
# Handle _extra_fits
for hdu_name, parts in six.iteritems(tree.get('extra_fits', {})):
hdu_name = fits_hdu_name(hdu_name)
if 'data' in parts:
hdu = _make_new_hdu(hdulist, parts['data'], hdu_name)
if 'header' in parts:
hdu = _get_or_make_hdu(hdulist, hdu_name)
for key, val, comment in parts['header']:
if _is_builtin_fits_keyword(key):
continue
hdu.header.append((key, val, comment), end=True)
