Plotting data from GML files

Please can someone help me the plotting of data from a gml file, never worked with such file before. The dataset can be downloaded from http://www-personal.umich.edu/~mejn/netdata/dolphins.zip

Answer 1

[KSSV]

fileName = 'dolphins.gml';
inputfile = fopen(fileName);
l=0;
k=1;
A = zeros([],2) ;
while 1
    % Get a line from the input file
    tline = fgetl(inputfile);
    % Quit if end of file
    if ~ischar(tline)
        break
    end
    nums = regexp(tline,'\d+','match');
    if ~isempty(nums)
        if l==1
            l=0;
            A(k,2)=str2double(nums{1});
            k=k+1;
            continue;
        end
        A(k,1)=str2double(nums{1});
        l=1;
    else
        l=0;
        continue;
    end
end
fclose(inputfile) ;
G = zeros([],[]) ;
for i=1:length(A)
    G(A(i,1)+1,A(i,2)+1) = 1;
    G(A(i,2)+1,A(i,1)+1) = 1;
end

figure
g = graph(G) ;
plot(g)

figure
L=diag(sum(G))-G;
[v,~]=eig(L);
xy=v(:,[2 3]) ;
gplot(G,xy,'.-r')

[Isaac Osei Agyemang]

Please I've seen it before, I'm new to matlab and i want to plot the data in that file in a form of a graph, dont have any idea of that, can you help me.

[KSSV]

The data is read and Adjacency matrix can be created.....can you show me how the output is? Any pictorial example?

[Isaac Osei Agyemang]

this is how i'm expecting it in matlab, i used a visualizer called gephi to plot it, but i want to use matlab so i can compute some analysis the gephi can't do.

[Isaac Osei Agyemang]

I get this error when i use the code you wrote.

Error using fgets Invalid file identifier. Use fopen to generate a valid file identifier.

Error in fgetl (line 32) [tline,lt] = fgets(fid);

Error in Dol (line 8) tline = fgetl(inputfile);

and when i changed it to fopen, it runs without any error but the graph does not show.

[KSSV]

See to it that..the .gml file is present in the folder where code is run.

[Isaac Osei Agyemang]

Please the file is in the same location but am not getting any output

[KSSV]

You getting any error?

[Isaac Osei Agyemang]

yes please, it runs without any output, I've got the dataset in a mat file, can I send it to you via email?