likelihood.py 1.35 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# Copyright(C) 2013-2017 Max-Planck-Society
#
# IMAGINE is being developed at the Max-Planck-Institut fuer Astrophysik
# and financially supported by the Studienstiftung des deutschen Volkes.
18 19

import abc
Martin Reinecke's avatar
Martin Reinecke committed
20
import nifty4 as ift
21

22 23 24 25 26

class Likelihood(Loggable, object):
    @abc.abstractmethod
    def __call__(self, observables):
        raise NotImplementedError
27 28

    def _strip_data(self, data):
Martin Reinecke's avatar
Martin Reinecke committed
29
        # if the first element in the domain tuple is unstructured, we must
30
        # extract the data
31 32 33
        if not hasattr(data, 'domain'):
            return data

Martin Reinecke's avatar
Martin Reinecke committed
34
        if isinstance(data.domain[0], ift.UnstructuredDomain):
35 36 37 38
            data = data.val.get_full_data()[0]
        else:
            data = data.val.get_full_data()
        return data