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

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KSSV
KSSV 2018-9-25
编辑:KSSV 2018-9-25
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')

8 个评论

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.
The data is read and Adjacency matrix can be created.....can you show me how the output is? Any pictorial example?
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.
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.
See to it that..the .gml file is present in the folder where code is run.
Please the file is in the same location but am not getting any output
You getting any error?
yes please, it runs without any output, I've got the dataset in a mat file, can I send it to you via email?

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