grid.dendrogram: Draw dendrogram under grid system
In eilslabs/ComplexHeatmap: Making Complex Heatmaps

Description Usage Arguments Details Value Author(s) Examples

Draw dendrogram under grid system

1 2	grid.dendrogram(dend, facing = c("bottom", "top", "left", "right"), max_height = NULL, order = c("normal", "reverse"), ...)

`dend`	a `dendrogram` object.
`facing`	facing of the dendrogram.
`max_height`	maximum height of the dendrogram. It is useful to make dendrograms comparable if you want to plot more than one dendrograms. Height for each dendrogram can be obtained by `attr(dend, "height")`.
`order`	should leaves of dendrogram be put in the normal order (1, ..., n) or reverse order (n, ..., 1)? It may matters for the dendrograms putting on left and right.
`...`	pass to `viewport` which contains the dendrogram.

The dendrogram can be renderred (e.g. by dendextend package).

A viewport is created which contains the dendrogram.

This function only plots the dendrogram without adding labels. The leaves of the dendrogram locates at unit(c(0.5, 1.5, ...(n-0.5))/n, "npc").

No value is returned.

Zuguang Gu <z.gu@dkfz.de>

hc = hclust(dist(USArrests[1:5, ]))
dend = as.dendrogram(hc)

grid.newpage()
layout = grid.layout(nrow = 2, ncol = 2)
pushViewport(viewport(layout = layout))
grid.dendrogram(dend, layout.pos.row = 1, layout.pos.col = 1)
grid.dendrogram(dend, facing = "top", layout.pos.row = 1, layout.pos.col = 2)
grid.dendrogram(dend, facing = "top", order = "reverse", layout.pos.row = 2, 
    layout.pos.col = 1)
grid.dendrogram(dend, facing = "left", layout.pos.row = 2, layout.pos.col = 2)
upViewport()