tf.contrib.summary.scalar

tf.contrib.summary.scalar(
    name,
    tensor,
    family=None,
    step=None
)

Defined in tensorflow/contrib/summary/summary_ops.py.

Writes a scalar summary if possible.

Unlike tf.contrib.summary.generic this op may change the dtype depending on the writer, for both practical and efficiency concerns.

Args:

• name: An arbitrary name for this summary.
• tensor: A tf.Tensor Must be one of the following types: float32, float64, int32, int64, uint8, int16, int8, uint16, half, uint32, uint64.
• family: Optional, the summary's family.
• step: The int64 monotonic step variable, which defaults to tf.train.get_global_step.

Returns:

The created tf.Operation or a tf.no_op if summary writing has not been enabled for this context.