scipy.cluster.hierarchy.median¶

scipy.cluster.hierarchy.
median
(y)[source]¶ Perform median/WPGMC linkage.
See
linkage
for more information on the return structure and algorithm.The following are common calling conventions:
Z = median(y)
Performs median/WPGMC linkage on the condensed distance matrix
y
. Seelinkage
for more information on the return structure and algorithm.Z = median(X)
Performs median/WPGMC linkage on the observation matrix
X
using Euclidean distance as the distance metric. Seelinkage
for more information on the return structure and algorithm.
Parameters: y : ndarray
A condensed distance matrix. A condensed distance matrix is a flat array containing the upper triangular of the distance matrix. This is the form that
pdist
returns. Alternatively, a collection of m observation vectors in n dimensions may be passed as a m by n array.Returns: Z : ndarray
The hierarchical clustering encoded as a linkage matrix.
See also
linkage
 for advanced creation of hierarchical clusterings.
scipy.spatial.distance.pdist
 pairwise distance metrics