grid.dendrogram {ComplexHeatmap} | R Documentation

## Draw the Dendrogram

### 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)

[Package ComplexHeatmap version 2.3.4 Index]