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MathGroup Archive 2005

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Re: Directed Graph from Adjacency Matrix

  • To: mathgroup at smc.vnet.net
  • Subject: [mg58803] Re: Directed Graph from Adjacency Matrix
  • From: "Carl K. Woll" <carlw at u.washington.edu>
  • Date: Tue, 19 Jul 2005 04:10:11 -0400 (EDT)
  • Organization: University of Washington
  • References: <dbflj5$n0m$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

"confused" <gtg368j at mail.gatech.edu> wrote in message 
news:dbflj5$n0m$1 at smc.vnet.net...
>I am new to Mathematica.  Here is my question.  How would I get a
> directed graph from an adjacency matrix?  For instance, the 3x3 matrix
> {{0,1,0},{0,0,1},{1,0,0}} defines a directed 3-cycle, but when I try to
> turn it into a graph using FromAdjacencyMatrix, Mathematica returns a
> graph with only two edges.
>
> Thank you.
>

Use the option Type->Directed:

ShowGraph[FromAdjacencyMatrix[{{0,1,0},{0,0,1},{1,0,0}},Type->Directed]]

produces a directed 3-cycle.

Carl Woll
Wolfram Research 



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