TF 2.0 is out! Get hands-on practice at TF World, Oct 28-31. Use code TF20 for 20% off select passes. Register now

tf.data.experimental.cardinality

View source on GitHub

Returns the cardinality of dataset, if known.

Aliases:

  • tf.compat.v1.data.experimental.cardinality
  • tf.compat.v2.data.experimental.cardinality
tf.data.experimental.cardinality(dataset)

The operation returns the cardinality of dataset. The operation may return tf.data.experimental.INFINITE_CARDINALITY if dataset contains an infinite number of elements or tf.data.experimental.UNKNOWN_CARDINALITY if the analysis fails to determine the number of elements in dataset (e.g. when the dataset source is a file).

Args:

Returns:

A scalar tf.int64 Tensor representing the cardinality of dataset. If the cardinality is infinite or unknown, the operation returns the named constant INFINITE_CARDINALITY and UNKNOWN_CARDINALITY respectively.