mars.dataframe.Series.str.index

Series.str.index(sub, start=0, end=None)

Return lowest indexes in each string in Series/Index.

Each of the returned indexes corresponds to the position where the substring is fully contained between [start:end]. This is the same as str.find except instead of returning -1, it raises a ValueError when the substring is not found. Equivalent to standard str.index.

Parameters

• sub (str) – Substring being searched.

• start (int) – Left edge index.

• end (int) – Right edge index.

Return type

Series or Index of object

See also

rindex

Return highest indexes in each strings.