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Resolve https://github.com/microsoft/qlib/pull/280\#discussion_r589167776

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This commit is contained in:
Charles Young
2021-03-08 17:14:29 +08:00
parent 79c1142d3e
commit 4d5a30b30b
1 changed files with 8 additions and 8 deletions
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16
qlib/model/riskmodel/structured.py
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@@ -36,21 +36,21 @@ class StructuredCovEstimator(RiskModel):
self,
factor_model: str = "pca",
num_factors: int = 10,
assume_centered: bool = False,
scale_return: bool = True,
nan_option: str = DEFAULT_NAN_OPTION
**kwargs
):
"""
Args:
factor_model (str): the latent factor models used to estimate the structured covariance (`pca`/`fa`).
num_factors (int): number of components to keep.
assume_centered (bool): whether the data is assumed to be centered.
scale_return (bool): whether scale returns as percentage.
nan_option (str): nan handling option (`fill`).
kwargs: see `RiskModel` for more information
"""
assert nan_option in [self.DEFAULT_NAN_OPTION], "nan_option={} is not supported".format(nan_option)
if 'nan_option' in kwargs.keys():
assert kwargs['nan_option'] in [self.DEFAULT_NAN_OPTION], \
"nan_option={} is not supported".format(kwargs['nan_option'])
else:
kwargs['nan_option'] = self.DEFAULT_NAN_OPTION
super().__init__(nan_option, assume_centered, scale_return)
super().__init__(**kwargs)
assert factor_model in [
self.FACTOR_MODEL_PCA,