cudf.core.column.string.StringMethods.rfind

StringMethods.rfind(sub: str, start: int = 0, end: int = None) → SeriesOrIndex

Return highest indexes in each strings in the Series/Index where the substring is fully contained between [start:end]. Return -1 on failure. Equivalent to standard str.rfind().

Parameters

substr

Substring being searched.

startint

Left edge index.

endint

Right edge index.

Returns

Series or Index of int

See also

find

Return lowest indexes in each strings.

Examples

>>> import cudf
>>> s = cudf.Series(["abc", "hello world", "rapids ai"])
>>> s.str.rfind('a')
0    0
1   -1
2    7
dtype: int32

Using start and end parameters.

>>> s.str.rfind('a', start=2, end=5)
0   -1
1   -1
2   -1
dtype: int32