question regarding reading .dat file in matlab

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Hi,
I've a dat file that looks like this:
17 9 0.010426
18 6 0.024578
19 8 0.018038
19 17 0.032405
I was wondering how I could read it in matlab. I have written the following code, but it doesnt give me the right answer. Is there a different way to read .dat file in matlab. I am new to matlab so please help.
function [costs] = adjacencyMatrix(filename)
filename = 'alnet3.dat';
delimiterIn = ' ';
startRow = 1;
startCol = 1;
M = dlmread(filename,delimiterIn,startRow,startCol);
N = M(1,1);
node1 = M(3:end,1);
node2 = M(3:end,2);
cost = M(3:end,3);
pairs = sparse( node1, node2, cost ,N, N ) ;
pairs = pairs + pairs.';
costs = full(pairs);
end

采纳的回答

Sara
Sara 2014-4-30
If the file is like the one you have posted, you can use the load command

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