Plots for AHC — ahc_plots • GDAtools

Draws various plots for Ascending Hierarchical Clustering results.

ahc_plots(ahc, distance = NULL, max.cl = 20, type = "dist")

Arguments

ahc: object of class hclust or agnes
distance: A dissimilarity matrix or a dist object. Only used if type is "inert" or "loss". Default is NULL.
max.cl: Integer. Maximum number of clusters taken into account in the plots.
type: Character string. If "dist" (default), the distance between agregated clustersis plotted. If "inert", it is the percentage of explained inertia (pseudo-R2). If "loss", it is the relative loss of explained inertia (pseudo-R2).

Author

Nicolas Robette

Examples

data(Taste)
disjonctif <- dichotom(Taste[,1:11])
distance <- dist(disjonctif)
cah <- stats::hclust(distance, method = "ward.D2")
ahc_plots(cah, max.cl = 15, type = "dist")

ahc_plots(cah, distance = distance, max.cl = 15, type = "inert")

ahc_plots(cah, distance = distance, max.cl = 15, type = "loss")