turicreate.SArray.item_length — Turi Create API 6.4.1 documentation (original) (raw)

SArray. item_length()¶

Length of each element in the current SArray.

Only works on SArrays of dict, array, or list type. If a given element is a missing value, then the output elements is also a missing value. This function is equivalent to the following but more performant:

sa_item_len = sa.apply(lambda x: len(x) if x is not None else None)

Examples

sa = SArray([ ... {"is_restaurant": 1, "is_electronics": 0}, ... {"is_restaurant": 1, "is_retail": 1, "is_electronics": 0}, ... {"is_restaurant": 0, "is_retail": 1, "is_electronics": 0}, ... {"is_restaurant": 0}, ... {"is_restaurant": 1, "is_electronics": 1}, ... None]) sa.item_length() dtype: int Rows: 6 [2, 3, 3, 1, 2, None]