Re: Representation of tree graphs or branching structures.

[Patrick Burns <pburns@pburns.seanet.com>]

There are functions in S Poetry (available via a "shar" file)
for mathematical graphs.  This includes a plot method.
I'm a bit dubious that it will satisfy your needs, but it may
be a starting point.

 Patrick Burns
 
  Burns Statistics
  patrick@burns-stat.com
  +44 (0)20 8525 0696
  http://www.burns-stat.com
 (home of S Poetry and "A Guide for the Unwilling S User")

west@codingstrand.com wrote:

Dear list members:

 

Does anyone know if it is possible to graphically render a branching tree like structure in SPlus?  i.e. I have a data frame with 3 columns as follows:

 

Index     Node1     Node2

1         1         2

2         2         3

3         2         6

4         6         7

5         7         11

6         11        5

 

I would like a pictorial(line?) representation of the connections between Nodes1 and Nodes2 as I work down the sheet by Index.

Is this possible, and if not can someone reccommend a suitable alternative if possible?

 

Thanks for any help or suggestions.

 

Lina