4 ms·
What if you have an in-memory DataFrame? Not hard to end up with something that looks like List<Optional<T>> (say, NullableSeries<T>) as one of the columns.
by bobbylarrybobby 4y ago
What if you have an in-memory DataFrame? Not hard to end up with something that looks like List<Optional<T>> (say, NullableSeries<T>) as one of the columns.