- ak._v2.ak_prod.prod(array, axis=None, keepdims=False, mask_identity=False, flatten_records=False)¶
array – Array-like data (anything
0is the outermost,
1is the first level of nested lists, etc., and negative
axiscounts from the innermost:
-1is the innermost,
-2is the next level up, etc.
Multiplies elements of
array (many types supported, including all
Awkward Arrays and Records). The identity of multiplication is
1 and it
is usually not masked. This operation is the same as NumPy’s
if all lists at a given dimension have the same length and no None values,
but it generalizes to cases where they do not.
ak.sum for a more complete description of nested list and missing
value (None) handling in reducers.