ggdendro (version 0.1-12)

ggdendro-package: Tools for creating dendrograms, regresion tree and classification tree plots using ggplot in [R]

Description

Tools for extracting dendrogram and tree diagram plot data for use with ggplot.

code

ggdendrogram

Details

This is a set of tools for dendrograms and tree plots using ggplot The ggplot philosophy is to clearly separate data from the presentation. Unfortunately the plot method for dendrograms (plot.dendrogram) plots directly to a plot device without exposing the data. The ggdendro package resolves this by making available functions that extract the dendrogram plot data. This data can be used with ggplot. dendro_data extracts data from several cluster algorithms. It is a generic function with specific implementations for:

• hclust:dendro_data.hclust
• dendrogram:dendro_data.dendrogram
• regression trees:dendro_data.tree

These methods create an object of class dendro, consisting of a list of data.frames. To extract the relevant data frames from the list, there are three accessor functions:

• segment

{the line segment data} label{the text for each end segment} leaf_label{the leaf labels of a tree diagram}

See Also

dendro_data