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Banner Of Agglomerative Hierarchical Clusterings

Usage

plot.agnes(x, ...)

Arguments

x an object of class "agnes", created by the function agnes. Graphical parameters (see par) may also be supplied as arguments to this function.

Description

The banner displays the hierarchy of clusters, and is equivalent to a tree. See Rousseeuw (1986) or chapter 5 of Kaufman and Rousseeuw (1990). The banner plots distances at which objects and clusters are merged. The objects are listed in the order found by the agnes algorithm, and the numbers in the height vector are represented as bars between the objects.

Value

a NULL value is returned.

Side Effects

A banner is plotted on the current graphics device.

References

Kaufman, L. and Rousseeuw, P.J. (1990). Finding Groups in Data: An Introduction to Cluster Analysis. Wiley, New York.

Rousseeuw, P.J. (1986). A visual display for hierarchical classification, in "Data Analysis and Informatics 4", edited by E. Diday, Y. Escoufier, L. Lebart, J. Pages, Y. Schektman, and R. Tomassone. North-Holland, Amsterdam. pp. 743-748.

See Also

agnes, agnes.object, pltree.agnes, par.

Examples

plot(agnes(votes.repub))