X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=R%2Fwrite.tree.R;h=996b9aa4f2b9488a87294c735839bce04322dd95;hb=42bf3d36a0a2a5edd0071739ad346ae9009abffa;hp=058565c1364fbe4c1437620e0f4740ae9ef934b1;hpb=ab6699f9054798268ce371d664e6d9d45bb4dd3a;p=ape.git

diff --git a/R/write.tree.R b/R/write.tree.R
index 058565c..996b9aa 100644
--- a/R/write.tree.R
+++ b/R/write.tree.R
@@ -1,4 +1,4 @@
-## write.tree.R (2009-03-23)
+## write.tree.R (2009-06-16)
 
 ##   Write Tree File in Parenthetic Format
 
@@ -30,24 +30,25 @@ checkLabel <- function(x, ...)
 write.tree <-
     function (phy, file = "", append = FALSE, digits = 10, tree.names = FALSE)
 {
+    output.tree.names <- FALSE
     if (is.logical(tree.names)) {
         output.tree.names <- tree.names
         tree.names <- NULL
     } else if (is.character(tree.names)) {
         output.tree.names <- TRUE
-        names(tree) <- tree.names
+        names(phy) <- tree.names
     }
     if (output.tree.names)
-        names(tree) <- checkLabel(names(tree))
-    if (class(phy) == "multiPhylo") {
+        names(phy) <- checkLabel(names(phy))
+    if (inherits(phy, "multiPhylo")) {
         write.tree(phy[[1]], file = file, append = append,
-                   digits = digits, tree.names = names[1])
+                   digits = digits, tree.names = names(phy)[1])
         if (length(phy) > 1)
             for (i in 2:length(phy)) write.tree(phy[[i]], file = file,
                 append = TRUE, digits = digits, tree.names = names(phy)[i])
         return(invisible(NULL))
     }
-    if (class(phy) != "phylo")
+    if (!inherits(phy, "phylo"))
         stop("object \"phy\" is not of class \"phylo\"")
     brl <- !is.null(phy$edge.length)
     nodelab <- !is.null(phy$node.label)