1 ## write.tree.R (2010-09-27)
3 ## Write Tree File in Parenthetic Format
5 ## Copyright 2002-2010 Emmanuel Paradis, Daniel Lawson, and Klaus Schliep
7 ## This file is part of the R-package `ape'.
8 ## See the file ../COPYING for licensing issues.
10 checkLabel <- function(x, ...)
12 ## delete all leading and trailing spaces and tabs, and
13 ## the leading left and trailing right parentheses:
14 ## (the syntax will work with any mix of these characters,
15 ## e.g., " ( ( (( " will correctly be deleted)
16 x <- gsub("^[[:space:]\\(]+", "", x)
17 x <- gsub("[[:space:]\\)]+$", "", x)
18 ## replace all spaces and tabs by underscores:
19 x <- gsub("[[:space:]]", "_", x)
20 ## remove all commas, colons, and semicolons
21 x <- gsub("[,:;]", "", x)
22 ## replace left and right parentheses with dashes:
23 x <- gsub("[\\(\\)]", "-", x)
24 ## delete extra underscores and extra dashes:
25 x <- gsub("_{2,}", "_", x)
26 x <- gsub("-{2,}", "-", x)
31 function (phy, file = "", append = FALSE, digits = 10, tree.names = FALSE)
33 output.tree.names <- FALSE
34 if (is.logical(tree.names)) {
35 output.tree.names <- tree.names
37 } else if (is.character(tree.names)) {
38 output.tree.names <- TRUE
39 names(phy) <- tree.names
41 if (output.tree.names)
42 names(phy) <- checkLabel(names(phy))
43 if (inherits(phy, "multiPhylo")) {
44 write.tree(phy[[1]], file = file, append = append,
45 digits = digits, tree.names = names(phy)[1])
47 for (i in 2:length(phy)) write.tree(phy[[i]], file = file,
48 append = TRUE, digits = digits, tree.names = names(phy)[i])
49 return(invisible(NULL))
51 if (!inherits(phy, "phylo"))
52 stop("object \"phy\" is not of class \"phylo\"")
53 brl <- !is.null(phy$edge.length)
54 nodelab <- !is.null(phy$node.label)
55 phy$tip.label <- checkLabel(phy$tip.label)
56 if (nodelab) phy$node.label <- checkLabel(phy$node.label)
57 f.d <- paste("%.", digits, "g", sep = "")
62 add.internal <- function(i) {
66 if (j > n) add.internal(j)
67 else add.terminal(ind[j])
68 if (j != desc[length(desc)]) cp(",")
71 if (nodelab) cp(phy$node.label[ind[i] - n])
74 cp(sprintf(f.d, phy$edge.length[ind[i]]))
77 add.terminal <- function(i) {
78 cp(phy$tip.label[phy$edge[i, 2]])
81 cp(sprintf(f.d, phy$edge.length[i]))
85 n <- length(phy$tip.label)
87 ## borrowed from phangorn:
88 parent <- phy$edge[, 1]
89 children <- phy$edge[, 2]
90 kids <- vector("list", n + phy$Nnode)
91 for (i in 1:length(parent))
92 kids[[parent[i]]] <- c(kids[[parent[i]]], children[i])
94 ind <- match(1:max(phy$edge), phy$edge[, 2])
97 if (brl) LS <- LS + 4*n
98 if (nodelab) LS <- LS + n
99 STRING <- character(LS)
101 if (output.tree.names) cp(tree.names)
104 getRoot <- function(phy)
105 phy$edge[, 1][!match(phy$edge[, 1], phy$edge[, 2], 0)][1]
106 root <- getRoot(phy) # replaced n+1 with root - root has not be n+1
109 if (j > n) add.internal(j)
110 else add.terminal(ind[j])
111 if (j != desc[length(desc)]) cp(",")
114 if (is.null(phy$root.edge)) {
116 if (nodelab) cp(phy$node.label[1])
121 if (nodelab) cp(phy$node.label[1])
123 cp(sprintf(f.d, phy$root.edge))
126 STRING <- paste(STRING, collapse = "")
129 else cat(STRING, file = file, append = append, sep = "\n")