Class CombinerStatsGenerator
Generate statistics using combiner function.
This object mirrors a beam.CombineFn.
__init__
__init__(
name,
schema=None
)
Initializes a statistics generator.
Args:
name: A unique name associated with the statistics generator.schema: An optional schema for the dataset.
Properties
name
schema
Methods
add_input
add_input(
accumulator,
input_batch
)
Returns result of folding a batch of inputs into accumulator.
Args:
accumulator: The current accumulator.input_batch: A Python dict whose keys are strings denoting feature names and values are lists representing a batch of examples, which should be added to the accumulator.
Returns:
The accumulator after updating the statistics for the batch of inputs.
create_accumulator
create_accumulator()
Returns a fresh, empty accumulator.
Returns:
An empty accumulator.
extract_output
extract_output(accumulator)
Returns result of converting accumulator into the output value.
Args:
accumulator: The final accumulator value.
Returns:
A proto representing the result of this stats generator.
merge_accumulators
merge_accumulators(accumulators)
Merges several accumulators to a single accumulator value.
Args:
accumulators: The accumulators to merge.
Returns:
The merged accumulator.