public VertexStatCollection(int nodeID, String nodeName, DFTNodeType type, VertexStats initialStats, int initialTime)
        {
            this.nodeID   = nodeID;
            this.nodeName = nodeName;
            this.type     = type;

            stats = new Dictionary <int, VertexStats>();
            stats.Add(initialTime, initialStats);
        }
 public void addVertexStatsForTime(int time, VertexStats stats)
 {
     this.stats.Add(time, stats);
 }