Creates a dataset that computes a group-by on input_dataset.
tf.raw_ops.GroupByReducerDataset( 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. |