def make_test_model(nsources=100,
npix=500,
ampl=100,
fwhm=30,
random_state='random-seed'):
"""Create a model of several Gaussian sources.
Parameters
----------
random_state : {int, 'random-seed', 'global-rng', `~numpy.random.RandomState`}
Defines random number generator initialisation.
Passed to `~gammapy.utils.random.get_random_state`.
"""
from sherpa.astro.ui import set_source
from morphology.utils import _set, _name
# initialise random number generator
random_state = get_random_state(random_state)
model = ' + '.join([_name(ii) for ii in range(nsources)])
set_source(model)
for ii in range(nsources):
_set(_name(ii), 'xpos', random_state.uniform(0, npix))
_set(_name(ii), 'ypos', random_state.uniform(0, npix))
_set(_name(ii), 'ampl', random_state.uniform(0, ampl))
_set(_name(ii), 'fwhm', random_state.uniform(0, fwhm))
def make_test_model(nsources=100, npix=500, ampl=100, fwhm=30):
"""Create a model of several Gaussian sources"""
from numpy.random import random
from sherpa.astro.ui import set_source
from morphology.utils import _set, _name
model = ' + '.join([_name(ii) for ii in range(nsources)])
set_source(model)
for ii in range(nsources):
_set(_name(ii), 'xpos', npix * random())
_set(_name(ii), 'ypos', npix * random())
_set(_name(ii), 'ampl', ampl * random())
_set(_name(ii), 'fwhm', fwhm * random())
def make_test_model(nsources=100, npix=500, ampl=100, fwhm=30):
"""Create a model of several Gaussian sources.
"""
from numpy.random import random
from sherpa.astro.ui import set_source
from morphology.utils import _set, _name
model = ' + '.join([_name(ii) for ii in range(nsources)])
set_source(model)
for ii in range(nsources):
_set(_name(ii), 'xpos', npix * random())
_set(_name(ii), 'ypos', npix * random())
_set(_name(ii), 'ampl', ampl * random())
_set(_name(ii), 'fwhm', fwhm * random())
def make_test_model(nsources=100, npix=500, ampl=100, fwhm=30, random_state="random-seed"):
"""Create a model of several Gaussian sources.
Parameters
----------
random_state : {int, 'random-seed', 'global-rng', `~numpy.random.RandomState`}
Defines random number generator initialisation.
Passed to `~gammapy.utils.random.get_random_state`.
"""
from sherpa.astro.ui import set_source
from morphology.utils import _set, _name
# initialise random number generator
random_state = get_random_state(random_state)
model = " + ".join([_name(ii) for ii in range(nsources)])
set_source(model)
for ii in range(nsources):
_set(_name(ii), "xpos", random_state.uniform(0, npix))
_set(_name(ii), "ypos", random_state.uniform(0, npix))
_set(_name(ii), "ampl", random_state.uniform(0, ampl))
_set(_name(ii), "fwhm", random_state.uniform(0, fwhm))