SciPy

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scipy.cluster.hierarchy.average

scipy.cluster.hierarchy.average(y)[source]

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.