pandas.Series.isin — pandas 0.16.2 documentation (original) (raw)
Series.isin(values)¶
Return a boolean Series showing whether each element in the Series is exactly contained in the passed sequence of values.
| Parameters: | values : list-like The sequence of values to test. Passing in a single string will raise a TypeError. Instead, turn a single string into alist of one element. |
|---|---|
| Returns: | isin : Series (bool dtype) |
| Raises: | TypeError If values is a string |
Examples
s = pd.Series(list('abc')) s.isin(['a', 'c', 'e']) 0 True 1 False 2 True dtype: bool
Passing a single string as s.isin('a') will raise an error. Use a list of one element instead:
s.isin(['a']) 0 True 1 False 2 False dtype: bool