bigraph -- create a bigraph

• Usage:

  G= bigraph(H)

  G= bigraph(L)

  G= bigraph(V,L)

  G= bigraph(V,A)

  G= bigraph(A)

• Inputs:
  • H, a hash table, hashtable of edges
  • L, a list, list of edges
  • V, a list, list of vertices
  • A, a matrix, adjacency matrix
• Optional inputs:
  • EntryMode => ..., default value "auto", optional input, accepts 'auto', 'edges', or 'neighbors'
  • Singletons => ..., default value null, optional input, accepts the list of isolated vertices in a bigraph
• Outputs:
  • an instance of the type Bigraph,

i1 : G = bigraph {{3,4},{1,2},{2,4}}

o1 = Bigraph{1 => {2}   }
             2 => {4, 1}
             3 => {4}
             4 => {3, 2}

o1 : Bigraph