Unable to use a value of type graph as an index.

Hi!

I am getting the error in below codes. I have all the inputs in workspace but I am still getting this error. Can anybody help me to resolve this error? Please find the screeshot of an error in an attachment.

for i=1:m

current_node = neigh_nodes_deg_2(i,1);

preceding_node = origin_node;

edge_path = [origin_node;current_node];

counter = 1;

% note: if the graph contains a closed sub-graph, the while loop will

% not end. Stop, identify the loop and correct it within the

% shapefile

while isempty(neigh_nodes_deg_2(G2,current_node,preceding_node))~=1

succeeding_node = niegh_nodes_deg_2(G2,current_node,preceding_node);

preceding_node = current_node;

current_node = succeeding_node;

edge_path = [edge_path; current_node];

counter = counter + 1;

end

Answer 1

[Cris LaPierre]

Your variable G2 is a graph obejct, but you are using it to index the first position (rows) of neigh_nodes_deg_2, which is a vector.

% vv Here

while isempty(neigh_nodes_deg_2(G2,current_node,preceding_node))~=1

[Omer Iqbal]

Hi!

Thanks for your suggestions. Did you mean to change the order of variable is the solution? For instance, see below;

while isempty(neigh_nodes_deg_2(current_node,G2, preceding_node))~=1

However, it is still giving me an error by re arrangment of variables.

[Cris LaPierre]

You cannot use G2 as an index at all, It is not the value you think it is. Here is an example of the error.

A=1:3;
p=plot(A);

% your error
A(p)

Unable to use a value of type matlab.graphics.chart.primitive.Line as an index.