tf.histogram_fixed_width_bins

TensorFlow 1 version View source on GitHub

Bins the given values for use in a histogram.

tf.histogram_fixed_width_bins(
    values, value_range, nbins=100, dtype=tf.dtypes.int32, name=None
)

Given the tensor values, this operation returns a rank 1 Tensor representing the indices of a histogram into which each element of values would be binned. The bins are equal width and determined by the arguments value_range and nbins.

values Numeric Tensor.
value_range Shape [2] Tensor of same dtype as values. values <= value_range[0] will be mapped to hist[0], values >= value_range[1] will be mapped to hist[-1].
nbins Scalar int32 Tensor. Number of histogram bins.
dtype dtype for returned histogram.
name A name for this operation (defaults to 'histogram_fixed_width').

A Tensor holding the indices of the binned values whose shape matches values.

TypeError If any unsupported dtype is provided.
tf.errors.InvalidArgumentError If value_range does not satisfy value_range[0] < value_range[1].

Examples:

# Bins will be:  (-inf, 1), [1, 2), [2, 3), [3, 4), [4, inf)
nbins = 5
value_range = [0.0, 5.0]
new_values = [-1.0, 0.0, 1.5, 2.0, 5.0, 15]

with tf.compat.v1.get_default_session() as sess:
  indices = tf.histogram_fixed_width_bins(new_values, value_range, nbins=5)
  variables.global_variables_initializer().run()
  sess.run(indices) # [0, 0, 1, 2, 4, 4]