Student Support Forum: 'Build graph from incidency matrix' topicStudent Support Forum > General > "Build graph from incidency matrix"

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 Author Comment/Response Anton 10/26/12 09:46am Hi, I'm looking for help trying to build a graph object in Mathematica, but getting the following error message: a={{0,1,1,0,0,0,1,0,0},{1,0,1,0,1,0,0,1,0},{1,1,0,0,0,1,0,0,1},{0,0,0,0,0,1,0,0,0},{0,1,0,0,0,1,0,1,0},{0,0,1,1,1,0,0,0,1},{1,0,0,0,0,0,0,1,1},{0,1,0,0,1,0,1,0,1},{0,0,1,0,0,1,1,1,0}} Out[52]= {{0,1,1,0,0,0,1,0,0},{1,0,1,0,1,0,0,1,0},{1,1,0,0,0,1,0,0,1},{0,0,0,0,0,1,0,0,0},{0,1,0,0,0,1,0,1,0},{0,0,1,1,1,0,0,0,1},{1,0,0,0,0,0,0,1,1},{0,1,0,0,1,0,1,0,1},{0,0,1,0,0,1,1,1,0}} In[53]:= Head[a] Out[53]= List In[54]:= IncidenceGraph[a] During evaluation of In[54]:= IncidenceGraph::list: List expected at position 1 in IncidenceGraph[Automatic,{{0,1,1,0,0,0,1,0,0},{1,0,1,0,1,0,0,1,0},{1,1,0,0,0,1,0,0,1},{0,0,0,0,0,1,0,0,0},{0,1,0,0,0,1,0,1,0},{0,0,1,1,1,0,0,0,1},{1,0,0,0,0,0,0,1,1},{0,1,0,0,1,0,1,0,1},{0,0,1,0,0,1,1,1,0}}]. >> Out[54]= IncidenceGraph[Automatic,{{0,1,1,0,0,0,1,0,0},{1,0,1,0,1,0,0,1,0},{1,1,0,0,0,1,0,0,1},{0,0,0,0,0,1,0,0,0},{0,1,0,0,0,1,0,1,0},{0,0,1,1,1,0,0,0,1},{1,0,0,0,0,0,0,1,1},{0,1,0,0,1,0,1,0,1},{0,0,1,0,0,1,1,1,0}}] URL: ,

 Subject (listing for 'Build graph from incidency matrix') Author Date Posted Build graph from incidency matrix Anton 10/26/12 09:46am Re: Build graph from incidency matrix Peter Pein 11/01/12 4:51pm Re: Build graph from incidency matrix Anton 11/08/12 05:18am
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