MATLAB: Error Undefined Function ‘shortestpath’ for input arguments of type ‘double’

errorshortestpathundefined function

So I'm working on this code that needs to find the shortest distance between 2 points. I have labelled all the distances as 1 for now but when I run
 path = shortestpath (DG,1,2)
it returns with the error – undefined function……
This is my code
W = [1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]
DG = sparse ([1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 3 8 9 4 3 18 17 1 2 3 4 5 8 9 18 17 20 19 18 13 12 17 16 3 4 23 23 23 23 22 22 22 22], [2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 19 18 13 12 7 8 13 14 19 18 13 8 7 12 11 14 15 2 3 8 9 10 13 14 7 6 1 2 19 20 9 10 11 12], W)
path = shortestpath (DG,1,2)
Any help would be appreciated

Best Answer

shortestpath() is defined only for graph and digraph objects. You need to use graph() or digraph() to create a graph before you can shortestpath()
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