pandas.Series.cat.codes

Series.cat.codes[source]

Return Series of codes as well as the index.

Examples

>>> raw_cate = pd.Categorical(["a", "b", "c", "a"], categories=["a", "b"])
>>> ser = pd.Series(raw_cate)
>>> ser.cat.codes
0   0
1   1
2  -1
3   0
dtype: int8

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https://pandas.pydata.org/pandas-docs/version/2.3.0/reference/api/pandas.Series.cat.codes.html