rect.hclust | R Documentation |
Draws rectangles around the branches of a dendrogram highlighting the corresponding clusters. First the dendrogram is cut at a certain level, then a rectangle is drawn around selected branches.
rect.hclust(tree, k = NULL, which = NULL, x = NULL, h = NULL, border = 2, cluster = NULL)
tree |
an object of the type produced by |
k, h |
Scalar. Cut the dendrogram such that either exactly
|
which, x |
A vector selecting the clusters around which a
rectangle should be drawn. |
border |
Vector with border colors for the rectangles. |
cluster |
Optional vector with cluster memberships as returned by
|
(Invisibly) returns a list where each element contains a vector of data points contained in the respective cluster.
hclust
, identify.hclust
.
require(graphics) hca <- hclust(dist(USArrests)) plot(hca) rect.hclust(hca, k = 3, border = "red") x <- rect.hclust(hca, h = 50, which = c(2,7), border = 3:4) x
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