Defined in awkward.operations.structure on line 2521.

ak.is_none(array, axis=0, highlevel=True, behavior=None)
  • array – Data to check for missing values (None).

  • axis (int) – The dimension at which this operation is applied. The outermost dimension is 0, followed by 1, etc., and negative values count backward from the innermost: -1 is the innermost dimension, -2 is the next level up, etc.

  • highlevel (bool) – If True, return an ak.Array; otherwise, return a low-level ak.layout.Content subclass.

  • behavior (None or dict) – Custom ak.behavior for the output array, if high-level.

Returns an array whose value is True where an element of array is None; False otherwise (at a given axis depth).