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Re: Include unconnected nodes in graph plot -- how?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112419] Re: Include unconnected nodes in graph plot -- how?
  • From: Szabolcs HorvÃt <szhorvat at gmail.com>
  • Date: Wed, 15 Sep 2010 04:37:19 -0400 (EDT)

2010/9/14 Carl K. Woll <carlw at wolfram.com>:
> On 9/14/2010 4:15 AM, Szabolcs Horv=C3=A1t wrote:
>>
>> On 2010.09.13. 15:26, Szabolcs Horv==E1t wrote:
>>
>>>
>>> Hello,
>>>
>>> Is it possible to include unconnected nodes when plotting a graph
>>> (either using GraphPlot or some Combinatorica function)?
>>>
>>
>> To answer my own question, Combinatorica's ShowGraph does this.  But I
>> still wonder, is it possible with GraphPlot?
>>
>>
>
> You can do this with GraphPlot if you use an adjacency matrix, e.g.,
>
> GraphPlot[{{1, 0, 0}, {0, 0, 1}, {0, 1, 0}}]
>


Thank you Carl,

Yes, in fact GraphPlot has no way of knowing how many vertices are
there if only the edges are specified ...


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