tf.raw_ops.ExperimentalGroupByReducerDataset

Creates a dataset that computes a group-by on input_dataset.

tf.raw_ops.ExperimentalGroupByReducerDataset(
    input_dataset, key_func_other_arguments, init_func_other_arguments,
    reduce_func_other_arguments, finalize_func_other_arguments, key_func, init_func,
    reduce_func, finalize_func, output_types, output_shapes, name=None
)

Creates a dataset that computes a group-by on input_dataset.

Args:

  • input_dataset: A Tensor of type variant. A variant tensor representing the input dataset.
  • key_func_other_arguments: A list of Tensor objects. A list of tensors, typically values that were captured when building a closure for key_func.
  • init_func_other_arguments: A list of Tensor objects. A list of tensors, typically values that were captured when building a closure for init_func.
  • reduce_func_other_arguments: A list of Tensor objects. A list of tensors, typically values that were captured when building a closure for reduce_func.
  • finalize_func_other_arguments: A list of Tensor objects. A list of tensors, typically values that were captured when building a closure for finalize_func.
  • key_func: A function decorated with @Defun. A function mapping an element of input_dataset, concatenated with key_func_other_arguments to a scalar value of type DT_INT64.
  • init_func: A function decorated with @Defun. A function mapping a key of type DT_INT64, concatenated with init_func_other_arguments to the initial reducer state.
  • reduce_func: A function decorated with @Defun. A function mapping the current reducer state and an element of input_dataset, concatenated with reduce_func_other_arguments to a new reducer state.
  • finalize_func: A function decorated with @Defun. A function mapping the final reducer state to an output element.
  • output_types: A list of tf.DTypes that has length >= 1.
  • output_shapes: A list of shapes (each a tf.TensorShape or list of ints) that has length >= 1.
  • name: A name for the operation (optional).

Returns:

A Tensor of type variant.