1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
from ete3 import Tree
# Let's create simple tree
t = Tree('((((H,K),(F,I)G),E),((L,(N,Q)O),(P,S)));', format=1)
print("Original tree looks like this:")
print(t)
#
# /-H
# /--------|
# | \-K
# /--------|
# | | /-F
# /--------| \--------|
# | | \-I
# | |
# | \-E
#---------|
# | /-L
# | /--------|
# | | | /-N
# | | \--------|
# \--------| \-Q
# |
# | /-P
# \--------|
# \-S
# Prune the tree in order to keep only some leaf nodes.
t.prune(["H","F","E","Q", "P"])
print("Pruned tree")
print(t)
#
# /-F
# /--------|
# /--------| \-H
# | |
#---------| \-E
# |
# | /-Q
# \--------|
# \-P
# Let's re-create the same tree again
|
