dendextend (version 1.17.1)

ladderize: Ladderize a Tree

Description

This function reorganizes the internal structure of the tree to get the ladderized effect when plotted.

Usage

ladderize(x, right = TRUE, ...)
# S3 method for dendrogram
ladderize(x, right = TRUE, ...)
# S3 method for phylo
ladderize(x, right = TRUE, phy, ...)
# S3 method for dendlist
ladderize(x, right = TRUE, which, ...)

Value

A rotated tree object

Arguments

x

a tree object (either a dendrogram, dendlist, or phylo)

right

a logical (TRUE) specifying whether the smallest clade is on the right-hand side (when the tree is plotted upwards), or the opposite (if FALSE).

...

Currently ignored.

phy

a placeholder in case the user uses "phy ="

which

an integer (can have any number of elements). It indicates the elements in the dendlist to ladderize. If missing, it will ladderize all the dendrograms in the dendlist.

See Also

ladderize, rev.dendrogram, rotate (dendextend), rotate (ape)

Examples

dend <- USArrests[1:8, ] %>%
  dist() %>%
  hclust() %>%
  as.dendrogram() %>%
  set("labels_colors") %>%
  set("branches_k_color", k = 5)
set.seed(123)
dend <- shuffle(dend)

par(mfrow = c(1, 3))
dend %>% plot(main = "Original")
dend %>%
  ladderize(TRUE) %>%
  plot(main = "Right (default)")
dend %>%
  ladderize(FALSE) %>%
  plot(main = "Left (rev of right)")