Topological output and minor changes

ajaksu — Sat, 05 Aug 2006 19:29:03 -0000

Hi Michel,

Pretty useful project you have here, I haven't read the
clustering algorithms yet but have used it (with
ecological similarity indexes among samples!).
Hierarchical clustering makes that a LOT more useful,
so thank you very much :)

This patch adds a topological output to
Cluster(.topology()) and a respective method to
BaseClusterMethod(.topo()). It also changes .data()
behavior to avoid the .data()[0] idiom.

Feeding the output of .topo() to
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/139422
gives (e.g.):

9 -----+
|--+
8 -----+ |
|--
# --+ |
|--+ |
w --+ | |
|--+
e -----+

Regarding the .data() change:
* I think it'd be better to keep two different
datasets (.raw and .data?), because both states (flat
and clustered) are pretty different beasts.
* Perhaps having .data() "contents" stored as
.data would make things easier (in a "why call a method
with no parameters, that returns an object" way :)).
Making .data a property would keep current behavior and
require less ()s :)

I'm working on an advanced version of the topological
view and on a derivative of that printing recipe for my
own needs, but will forward them here when done.

Thanks again,
Daniel

Recent changes to patches

Topological output and minor changes