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DOC: Improve examples in Series.str.isnumeric shared docstring to include decimal, fraction, negatives and exponents (#60750) #60960

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Feb 21, 2025
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DOC: Improve examples in Series.str.isnumeric shared docstring to include decimal, fraction, negatives and exponents (#60750) #60960

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Improve examples for Series.str.isnumeric shared docstring to include…
akj2018 Feb 19, 2025
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Fixed trailing white space issue using pre-commit hook
akj2018 Feb 19, 2025
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DOC: Explicity mentioned type of Unicode numeric property in shared d…
akj2018 Feb 20, 2025
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19 changes: 18 additions & 1 deletion pandas/core/strings/accessor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3549,12 +3549,29 @@ def casefold(self):
also includes other characters that can represent quantities such as
unicode fractions.

>>> s1 = pd.Series(['one', 'one1', '1', ''])
>>> s1 = pd.Series(['one', 'one1', '1', '', '³', '⅕'])
>>> s1.str.isnumeric()
0 False
1 False
2 True
3 False
4 True
5 True
dtype: bool

For a string to be considered numeric, all its characters must have a Unicode
numeric property matching :py:meth:`str.is_numeric`. As a consequence,
the following cases are **not** recognized as numeric:

- **Decimal numbers** (e.g., "1.1"): due to period ``"."``
- **Negative numbers** (e.g., "-5"): due to minus sign ``"-"``
- **Scientific notation** (e.g., "1e3"): due to characters like ``"e"``

>>> s2 = pd.Series(["1.1", "-5", "1e3"])
>>> s2.str.isnumeric()
0 False
1 False
2 False
dtype: bool
"""
_shared_docs["isalnum"] = """
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