pyarrow.compute.count_substring_regex

pyarrow.compute.count_substring_regex(strings, /, pattern, *, ignore_case=False, options=None, memory_pool=None)

Count occurrences of substring.

For each string in strings, emit the number of occurrences of the given regular expression pattern. Null inputs emit null. The pattern must be given in MatchSubstringOptions.

Parameters:

stringsArray-like or scalar-like

Argument to compute function.

patternstr

Substring pattern to look for inside input values.

ignore_casebool, default False

Whether to perform a case-insensitive match.

optionspyarrow.compute.MatchSubstringOptions, optional

Alternative way of passing options.

memory_poolpyarrow.MemoryPool, optional

If not passed, will allocate memory from the default memory pool.