Check if all values in a Float32Array are non-negative.
Skips NaN values (NaN < 0 is false, so NaN would be silently treated
as non-negative in a naive implementation). A series containing NaN
cannot be assumed positive — it should be treated as having unknown sign.
Check if all values in a Float32Array are non-negative.
Skips NaN values (NaN < 0 is false, so NaN would be silently treated as non-negative in a naive implementation). A series containing NaN cannot be assumed positive — it should be treated as having unknown sign.