#### Previous topic

scipy.cluster.hierarchy.is_monotonic

#### Next topic

scipy.cluster.hierarchy.num_obs_linkage

# scipy.cluster.hierarchy.correspond

`scipy.cluster.hierarchy.``correspond`(Z, Y)

  Checks for correspondence between linkage and condensed distance matrices

  They must have the same number of original observations for the check to succeed.

  This function is useful as a sanity check in algorithms that make extensive use of linkage and distance matrices that must correspond to the same set of original observations.

  Parameters: | Z : array_like The linkage matrix to check for correspondence. Y : array_like The condensed distance matrix to check for correspondence.
  Returns: | b : bool A boolean indicating whether the linkage matrix and distance matrix could possibly correspond to one another.