grid.dendrogram: Draw the Dendrogram

In zhongmicai/complexHeatmap: Make Complex Heatmaps

Description

Draw the Dendrogram

Usage

grid.dendrogram(dend, ..., test = FALSE)

Arguments

dend	A dendrogram object.
...	Pass to dendrogramGrob.
test	Is it in test mode? If it is in test mode, a viewport is created by calculating proper xlim and ylim.

Details

grid.dendrogram supports drawing dendrograms with self-defind leaf positions. The positions of leaves can be defined by adjust_dend_by_x. Also the dendrogram can be customized by setting the edgePar attribute for each node (basically for controlling the style of segments), e.g. by color_branches.

To draw the dendrogram, a viewport should be firstly created. dend_xy can be used to get the positions of leaves and height of the dendrogram.

Examples

m = matrix(rnorm(100), 10)
dend = as.dendrogram(hclust(dist(m)))
grid.newpage()
pushViewport(viewport(xscale = c(0, 10.5), yscale = c(0, dend_heights(dend)), 
    width = 0.9, height = 0.9))
grid.dendrogram(dend)
popViewport()

grid.dendrogram(dend, test = TRUE)

require(dendextend)
dend = color_branches(dend, k = 2)
dend = adjust_dend_by_x(dend, unit(sort(runif(10)*10), "cm"))
grid.dendrogram(dend, test = TRUE)

zhongmicai/complexHeatmap documentation built on May 7, 2019, 6:11 a.m.