12 行
396 B
Python
12 行
396 B
Python
def get_array(df, col):
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"""
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Helper method to get array for a DataFrame column.
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Equivalent of df[col].values, but without going through normal getitem,
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which triggers tracking references / CoW (and we might be testing that
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this is done by some other operation).
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"""
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icol = df.columns.get_loc(col)
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assert isinstance(icol, int)
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return df._get_column_array(icol)
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