Image Graphs How to use it

I have downloaded Image Graphs matlab code but i am not able to run it. I am getting errors like this..

Undefined function or variable 'graph'.

Error in binaryImageGraph3 (line 111) g = graph(edge_table,node_table);

Error in binaryImageGraph (line 91) [g,nodenums] = binaryImageGraph3(bw,conn);

Error in imageGraph (line 74) g = binaryImageGraph(true(sz),conn);

Error in DemoSurfacePlots (line 16) g = imageGraph([480 640],8);

Please help me to run this code.

Answer 1

[Stephen23]

As its help clearly states graph was introduced in R2015b.

Solution to your problem: install R2015b or later version of MATLAB.

[prateek nahar]

Ok i am working on R2015a. That is why i am getting this error. Thank u very much.