pyarrow.compute.hash_mean

pyarrow.compute.hash_mean(array, group_id_array, *, memory_pool=None, options=None, skip_nulls=True, min_count=1)

Average values of a numeric array.

Null values are ignored. For integers and floats, NaN is returned if min_count = 0 and there are no values. For decimals, null is returned instead.

Parameters
  • array (Array-like or scalar-like) – Argument to compute function

  • group_id_array (Array-like or scalar-like) – Argument to compute function

  • memory_pool (pyarrow.MemoryPool, optional) – If not passed, will allocate memory from the default memory pool.

  • options (pyarrow.compute.ScalarAggregateOptions, optional) – Parameters altering compute function semantics.

  • skip_nulls (optional) – Parameter for ScalarAggregateOptions constructor. Either options or skip_nulls can be passed, but not both at the same time.

  • min_count (optional) – Parameter for ScalarAggregateOptions constructor. Either options or min_count can be passed, but not both at the same time.