dendextend (version 0.14.2)

duplicate_leaf: Duplicate a leaf X times

Description

Duplicates a leaf in a tree. Useful for non-parametric bootstraping trees since it emulates what would have happened if the tree was constructed based on a row-sample with replacments from the original data matrix.

Usage

duplicate_leaf(dend, leaf_label, times, fix_members = TRUE,
  fix_order = TRUE, fix_midpoint = TRUE, ...)

Arguments

dend

a dendrogram object

leaf_label

the label of the laef to replicate.

times

the number of times we will have this leaf after replication

fix_members

logical (TRUE). Fix the number of members in attr using fix_members_attr.dendrogram

fix_order

logical (TRUE). Fix the leaves order

fix_midpoint

logical (TRUE). Fix the midpoint value. If TRUE, it overrides "fix_members" and turns it into TRUE (since it must have a correct number of members in order to work). values using rank_order.dendrog

...

not used

Value

• A dendrogram, after duplicating one of its leaves.

Examples

# define dendrogram object to play with:
dend <- as.dendrogram(hclust(dist(USArrests[1:3,]), "ave"))
plot(dend)
duplicate_leaf(dend, "Alaska", 3)
duplicate_leaf(dend, "Arizona", 2, fix_members =FALSE, fix_order = FALSE)
plot(duplicate_leaf(dend, "Alaska", 2))
plot(duplicate_leaf(dend, "Alaska", 4))
plot(duplicate_leaf(dend, "Arizona", 2))
plot(duplicate_leaf(dend, "Arizona", 4))