On Mon, Dec 22, 2008 at 5:38 PM, Simon Chiang <simon.a.chiang / gmail.com> wrote:

>  o one
>  |
>  |-o two (fork of 1)
>  | |
>  `---o three (fork of 2)
>    | |
>    | | o four
>    | | |
>    | `-`-o five (merge of 3,4)
>    |     |
>    `-----`-o six (merge of 2,5)
>
> The whole thing is ordered in the sense that n-1 logically occurs
> before n.  Kinda reminiscent of git, but I'm using this as a kind of
> audit of how values progress though an analysis.

Except for the ordering, it kind of sounds like a digraph.

http://en.wikipedia.org/wiki/Digraph_%28mathematics%29

-greg

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