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Merged
merged 1 commit into from
Aug 23, 2024
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numpydoc build for base.py #95

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21 changes: 18 additions & 3 deletions src/diffpy/srmise/modelevaluators/base.py
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Expand Up @@ -53,8 +53,14 @@ class ModelEvaluator:
worse models."""

def __init__(self, method, higher_is_better):
"""method = name of method (string)
higher_is_better = boolean
"""Constructor of ModelEvaluator

Parameters
----------
method : str
The name of method
higher_is_better : bool
The boolean to compare higher or lower degree model.
"""
self.method = method
self.higher_is_better = higher_is_better
Expand Down Expand Up @@ -123,7 +129,16 @@ def __ge__(self, other):
return other.stat >= self.stat

def chi_squared(self, expected, observed, error):
"""Calculates chi-squared statistic."""
"""Calculates chi-squared statistic.

Parameters
----------
expected : float
The expected value.
observed : float
The observed value.
error : float
The error statistic."""

self.chisq = np.sum((expected - observed) ** 2 / error**2)
return self.chisq
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