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30 lines
792 B
Python
30 lines
792 B
Python
"""价值类因子（需要财务数据扩展，当前为占位实现）。"""
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from __future__ import annotations
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import pandas as pd
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from easy_tdx.factor.base import Factor, register_factor
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@register_factor
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class PERatio(Factor):
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name = "pe_ratio"
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category = "value"
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description = "市盈率（需要财务数据扩展，当前不可用）"
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inputs = ("close",)
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def compute(self, df: pd.DataFrame) -> pd.Series:
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return pd.Series(float("nan"), index=df.index)
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@register_factor
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class PBRatio(Factor):
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name = "pb_ratio"
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category = "value"
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description = "市净率（需要财务数据扩展，当前不可用）"
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inputs = ("close",)
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def compute(self, df: pd.DataFrame) -> pd.Series:
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return pd.Series(float("nan"), index=df.index)
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