cluster (version 2.0.5)

agnes.object: Agglomerative Nesting (AGNES) Object

Description

The objects of class "agnes" represent an agglomerative hierarchical clustering of a dataset.

Value

A legitimate agnes object is a list with the following components:

GENERATION

This class of objects is returned from agnes.

METHODS

The "agnes" class has methods for the following generic functions: print, summary, plot, and as.dendrogram. In addition, cutree(x, *) can be used to “cut” the dendrogram in order to produce cluster assignments.

INHERITANCE

The class "agnes" inherits from "twins". Therefore, the generic functions pltree and as.hclust are available for agnes objects. After applying as.hclust(), all its methods are available, of course.

See Also

agnes, diana, as.hclust, hclust, plot.agnes, twins.object.

cutree.

Examples

data(agriculture)
ag.ag <- agnes(agriculture)
class(ag.ag)
pltree(ag.ag) # the dendrogram

## cut the dendrogram -> get cluster assignments:
(ck3 <- cutree(ag.ag, k = 3))
(ch6 <- cutree(as.hclust(ag.ag), h = 6))
stopifnot(identical(unname(ch6), ck3))

Run the code above in your browser using DataCamp Workspace