@Override
	public String toString()
	{
		String out = "\t";
		for(int i = 0; i<graphData.length; i++)
			out += ids[i]+"\t";
		out += "\n";
		for(int i = 0; i<graphData.length; i++)
		{
			out += ids[i];
			for(int j = 0; j<graphData.length; j++)
			{
				out += "\t" + (graphData[i][j]? 1:0) + "\t";
			}
			out += "\n";
		}
		return out;
	}