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# scipy.cluster.hierarchy.average

`scipy.cluster.hierarchy.``average`(y)

  Performs average/UPGMA linkage on a condensed distance matrix

  Parameters: | y : ndarray The upper triangular of the distance matrix. The result of `pdist` is returned in this form.
  Returns: | Z : ndarray A linkage matrix containing the hierarchical clustering. See the `linkage` function documentation for more information on its structure.

  See also

  `linkage`
    for advanced creation of hierarchical clusterings.