Re: Phylogenetic question for John Harshman

On 15 Sep, 15:37, Augray <aug...@xxxxxxxxxxxx> wrote:
On Mon, 15 Sep 2008 06:07:08 -0700 (PDT), spintronic


You say *skin* "YES/NO" is a useful trait.

When I say "useful", I mean useful for constructing a phylogenetic
tree, which is what this thread is all about. "A plug that works in
this car" is *not* useful for constructing a phylogenetic tree.


Why? In the context of this group.





But *skin*;  "black/white" is also a useful trait in a certain
"group",
namely homosapiens.

Perhaps, at least if you're constructing a phylogenetic tree of Homo
sapiens.



Ahh.


Are you saying that in the *construction* of a "specific" group,
small characteristics matter?


Don't answer, *WE* already know.






In our **************GROUP************* of cars.

"w5dc" is as useful as "Black; yes/no".

and

"w7dc" as useful as "White; yes/no".

*Sigh*


Sigh all you like.



Should we have a vidual, Or a holiday?




How many times do I have to explain that "w5dc" or "w7dc" are not
informative traits because they're not a requirement for any
particular vehicle to have?



You have to explain, why "black/whit" skin is informative.

Yet "w5dc/ w7dc" Is not


In certain "groups".


"Colour" is pretty vague, you know.


.

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