Check for incorrect argument data type or missing argument in call to function 'neighbors'.

Hi! I am having an error on the following functions. I have all the inputs but the fucntion is still not able to read it.Please see the snapshot

j=1;

for i=1:numel(M_nodes_idx)

% disp(i)

current_node = M_nodes_idx(i,1);

if neighbors(current_node,g)~=current_node

n1n2 = neighbors(g,current_node);

[Cris LaPierre]

What are the values of g and current_node when you get this error? See the page Debug MALTAB Code Files if you are not sure how to get these values.

[Omer Iqbal]

Th value of current mode is 1, while g has all edges and nodes. I am trying to understand the problem through debuding but the problem does not seems to be clear becasue I have all the inputs and the fucntion should be working.

Answer 1

[Cris LaPierre]

@Star Strider had what I thought was the correct answer. In your if statement, you reverse the order of your inputs to neighbors.

N = neighbors(G,nodeID)

g should be your graph object (e.g. g = graph(bucky);), which we can't see, so check that, and nodeID should be a single node (e.g. current_node)

%                         v This should be the first input to neighbors
if neighbors(current_node,g)~=current_node
    n1n2 = neighbors(g,current_node);

Try correcting the order of your inputs.

if neighbors(g,current_node)~=current_node
    n1n2 = neighbors(g,current_node);

[Omer Iqbal]

Thank you so for your suggestions. I have tried to change the order but I am still getting the same error mentioned above.

When I looked into g( 1*1 graph) , I have found that it has two parts , one is edges while second is Nodes. The edges has values in it while Nodes doesnot have any value in it. I have used the follwoing codes to generate g. I am not sure why it is not computing the Nodes in g. Please snapshot and codes below;

for i=1:numel(EndNodes(:,1))

%disp(i)

if numel(EndNodes{i,1}{1,1})>1

EndNodes{i,1}{1,1} = min (EndNodes{i,1}{1,1});

end

EndNodes2(i,1)=EndNodes{i,1}{1,1};

if numel(EndNodes{i,1}{1,2})>1

EndNodes{i,1}{1,2} = min (EndNodes{i,1}{1,2});

end

EndNodes2(i,2)=EndNodes{i,1}{1,2};

end

% creating and empty graph and assigning edges to it

g=graph();

g = addedge(g,EndNodes2(:,1),EndNodes2(:,2));

[Cris LaPierre]

Please share all your code. You can attach your script using the paperclip icon.