R help - Apr 2009 - Vizualization of points within sets

Hi all,

I have a visualization question regarding sets. My problem is as follows:

I have several sets, each having some members (or 'points'). I would
like to connect the points, while keeping the sets. For example,
if I have 3 sets (Set 1 contains points A, B, C):


Set 1:
------
A, B, C

Set 2:
-----
A, D, E

Set 3:
-----
C, D, G, H


I would like each set to be represented by a circle (or rectangle),
with each point within that set labeled. Further, I would like to link
(with a solid line) the common points between the sets. So, 'A' in Set
1 would be connected with 'A' in Set 2. Which package/function would be
best to handle this? It would also be great if I could set the color of
the lines/points too.

thanks!


      
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Hi,
> I have a visualization question regarding sets. My problem is as follows:
I would define a distance matrix for the points as

d_ij = 0 if the points in the same set and 1 if not

In case that points can be in more than two sets use an more appropriate
distance measure, e.g. Jaccard etc. Then run a nonmetric
(two-dimensional) multidimensional scaling (package: MASS, function:
isoMDS) to determine the point positions. But I'am not sure that it will
be easy to draw the set borders.

Yours sincerely

Sigbert Klinke