<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">~ phylo4 objects have required (integer) Node numbers,<br>
required (character) tip labels, and optional (character) node labels<br>
(for internal nodes). Does that satisfy the requirement?</blockquote><div><br>nope. in addition to user-visible labels, I need a slot for unique identifiers (which may be non-numeric, and even if numeric may not follow the consecutive 1..N ordering of the phylo4 node numbers). The identifiers are necessary for all nodes, both tips and internal nodes.<br>
<br>But I'd prefer to able to do this generically: to have a (completely optional) annotation slot in which to stick things like "nexml node ID" and/or any other bits-and-bobs that some other software wants to know about, and phylobase doesn't care about. Like I said, I can use the phylo4d data.frame to store this additional info, but it's not character data, it's meta-data<br>
<br>-Aaron<br><br></div></div><br>