NullableArray{T, N} and Array{Nullable{T, N}} essentially follow the
struct-of-arrays vs. array-of-struct distinction. All of the values of a
NullableArray and all of the information about missingness/presence of
values are each stored in separate Array objects, which allows for certain
optimizations (such as passing the whole values field to, say, a reducing
method if it is known that no values are missing).
On Saturday, October 17, 2015 at 7:32:08 PM UTC-7, ggggg wrote:
>
> How does NullableArray{T,N} compare to Array{Nullable{T},N}?
>
