Adjacency matrix for a graph

Hi All,

I am trying to calculate adjacency matrix for double data type. I have starting and ending node for graph and it is randomly numbered as follows. Start:63584 end:42800 start:115316 end:42838 There are 5400 such entries. Could anyone help me how to calculate adjacency matrix ?

Thanks and Regards Shreyas

Answer 1

[Matt J]

 AdjMatrix = sparse(NodeStarts,NodeEnds,true);

[shreyas]

Thanks Matt J,but this command doesn't work on double data type and doesn't run even when I convert double to int 32.

[Matt J]

Works fine for me. E.g.,

>> NodeStarts=[1,2]; NodeEnds=[5,7]; AdjMatrix=sparse(NodeStarts,NodeEnds,true)

AdjMatrix =

     (1,5)        1
     (2,7)        1

>> whos
  Name            Size            Bytes  Class      Attributes

    AdjMatrix       2x7                82  logical    sparse    
    NodeEnds        1x2                16  double               
    NodeStarts      1x2                16  double