SAMI/MissingNodes_SrcCode2014/SaveAsciiGraph.m

function [edges] = SaveAsciiGraph(outFilePath, outFileName, graph, withSize)

if nargin >= 3
    
    if nargin < 4
        withSize = 0;
    end
    
    if isdir(outFilePath) == 0
        mkdir(outFilePath);
    end
    
    outFullName = strcat(outFilePath,outFileName);
    
    numNodes = size(graph,1);
    numEdges = sum(sum(graph,1));
    
    edges = zeros(numEdges,2);
    e = 1;
    
    for i=1:numNodes
        for j=1:numNodes
            if graph(i,j) == 1
                edges(e,1) = i-1;
                edges(e,2) = j-1;
                e = e+1;
            end
        end
    end
    
%    save(strcat(outFullName,'_edges.txt'), 'edges', '-ascii');
    if withSize == 1
        SaveIntMatrixToFile(strcat(outFullName,'_edges.txt'), edges, numNodes);
    else 
        SaveIntMatrixToFile(strcat(outFullName,'_edges.txt'), edges);
    end
%    save(strcat(outFullName,'_edges.mat'), 'edges');
%    save(strcat(outFullName,'_saveAsciiGraph.mat'));
else
    fprintf('Invalid parameters. expecting: outFilePath, outFileName, graph\n');
end