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name: Python style | ||
on: | ||
pull_request: | ||
# types: [opened] | ||
types: [opened] | ||
jobs: | ||
qa: | ||
name: Quality check | ||
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from typing import Optional | ||
from typing import Dict, List, Optional | ||
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from scipy import stats | ||
import numpy as np | ||
from scipy import stats | ||
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from alea.model import StatisticalModel | ||
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class GaussianModel(StatisticalModel): | ||
""" | ||
A model of a gaussian measurement, where the model has parameters mu and sigma. | ||
For illustration, we show how required nominal parameters can be added | ||
to the init sigma is fixed in this example. | ||
Args: | ||
parameter_definition (dict or list, optional (default=None)): | ||
definition of the parameters of the model | ||
Caution: | ||
You must define the nominal values of the parameters (mu, sigma) | ||
in the parameters definition. | ||
""" | ||
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def __init__( | ||
self, | ||
parameter_definition: Optional[dict or list] = None, | ||
parameter_definition: Optional[Dict or List] = None, | ||
**kwargs, | ||
): | ||
""" | ||
Initialise a model of a gaussian measurement (hatmu), | ||
where the model has parameters mu and sigma | ||
For illustration, we show how required nominal parameters can be added to the init | ||
sigma is fixed in this example. | ||
""" | ||
"""Initialise a gaussian model.""" | ||
if parameter_definition is None: | ||
parameter_definition = ["mu", "sigma"] | ||
super().__init__(parameter_definition=parameter_definition, **kwargs) | ||
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def _ll(self, mu=None, sigma=None): | ||
""" | ||
Log-likelihood of the model. | ||
Args: | ||
mu (float, optional (default=None)): mean of the gaussian, | ||
if None, the nominal value is used | ||
sigma (float, optional (default=None)): standard deviation of the gaussian, | ||
if None, the nominal value is used | ||
""" | ||
hat_mu = self.data[0]['hat_mu'][0] | ||
return stats.norm.logpdf(x=hat_mu, loc=mu, scale=sigma) | ||
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def _generate_data(self, mu=None, sigma=None): | ||
""" | ||
Generate data from the model. | ||
Args: | ||
mu (float, optional (default=None)): mean of the gaussian, | ||
if None, the nominal value is used | ||
sigma (float, optional (default=None)): standard deviation of the gaussian, | ||
if None, the nominal value is used | ||
Returns: | ||
list: data generated from the model | ||
""" | ||
hat_mu = stats.norm(loc=mu, scale=sigma).rvs() | ||
data = [np.array([(hat_mu,)], dtype=[('hat_mu', float)])] | ||
return data |
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