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# scipy.cluster.hierarchy.weighted

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

  Performs weighted/WPGMA linkage on the condensed distance matrix.

  See `linkage` for more information on the return structure and algorithm.

  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 `linkage` for more information on its structure.

  See also

  `linkage`
    for advanced creation of hierarchical clusterings.
  `scipy.spatial.distance.pdist`
    pairwise distance metrics