[Phylobase-devl] node retrieval

[Ben Bolker]

Hilmar Lapp wrote:
> On Mar 5, 2008, at 3:14 AM, Steve Kembel wrote:
> 
>> Are there any more decisions to be made about what to call things?
>> Tips, internals, nodes, edges
>> Descendant, ancestor, sister
> 
> 
> I wouldn't use sister, use the more neutral 'sibling' instead.
> 
> There is also typically a distinction between parents versus  
> ancestors, and children (or daughters) versus descendants (the first  
> ones being in direct relationship, and the latter ones direct or via  
> transitivity).
> 
> 	-hilmar


   that's useful.  so my functions (ancestor, descendants,
alldescendants, allancestors) could be (parent, children,
descendants, ancestors) ... ?

   Ben

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