Draw the Dendrogram
Draw the Dendrogram
grid.dendrogram(dend, ..., test = FALSE)
dend |
A |
... |
Pass to |
test |
Is it in test mode? If it is in test mode, a viewport is created by calculating proper xlim and ylim. |
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.
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)
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