# edges

From ape v2.6-3
0th

Percentile

##### Draw Additional Edges on a Plotted Tree

edges draws edges on a plotted tree. fancyarrows enhances arrows with triangle and harpoon heads; it can be called from edges.

Keywords
aplot
##### Usage
edges(nodes0, nodes1, arrows = 0, type = "classical", ...)
fancyarrows(x0, y0, x1, y1, length = 0.25, angle = 30, code = 2,
col = par("fg"), lty = par("lty"), lwd = par("lwd"),
type = "triangle", ...)
##### Arguments
nodes0, nodes1
vectors of integers giving the tip and/or node numbers where to start and to end the edges (eventually recycled).
arrows
an integer between 0 and 3; 0: lines (the default); 1: an arrow head is drawn at nodes0; 2: at nodes1; 3: both.
type
if the previous argument is not 0, the type of arrow head: "classical" (just lines, the default), "triangle", "harpoon", or any unambiguous abbreviations of these. For fancyarrows only the la
x0, y0, x1, y1
the coordinates of the start and end points for fancyarrows (these are not recycled and so should be vectors of the same length).
length, angle, code, col, lty, lwd
default options similar to those of arrows.
...
further arguments passed to segments.
##### Details

The first function is helpful when drawing reticulations on a phylogeny, especially if computed from the edge matrix.

plot.phylo, nodelabels

• edges
• fancyarrows
##### Examples
set.seed(2)
tr <- rcoal(6)
plot(tr, "c")
edges(10, 9, col = "red", lty = 2)
edges(10:11, 8, col = c("blue", "green")) # recycling of 'nodes1'
edges(1, 2, lwd = 2, type = "h", arrows = 3, col = "green")
nodelabels()
Documentation reproduced from package ape, version 2.6-3, License: GPL (>= 2)

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