コード例 #1
0
        //Přesunout MeansPointy do správných clusterů
        private bool UpdateClusterMembership()
        {
            MinIndex min = new MinIndex();

            bool changed = false;

            double[] distances = new double[_numberOfClusters];

            double[] sse_count = new double[_numberOfClusters];

            double result = 0;

            for (int i = 0; i < _normalizedDataToCluster.Count; ++i)
            {
                for (int k = 0; k < _numberOfClusters; ++k)
                {
                    distances[k] = ElucDist.Get(_normalizedDataToCluster[i], _clusters[k]);
                }

                int newClusterId = min.Get(distances);

                if (newClusterId != _normalizedDataToCluster[i].Cluster)
                {
                    changed = true;
                    _normalizedDataToCluster[i].Cluster = _rawDataToCluster[i].Cluster = newClusterId;

                    if (print)
                    {
                        Console.WriteLine("Width: " + _rawDataToCluster[i].Width + ", Lenght: " +
                                          _rawDataToCluster[i].Length + " ----> Cluster " + newClusterId);
                    }
                }
                //SSE pro cluster
                sse_count[newClusterId] = sse_count[newClusterId] + distances.Min();
            }

            //SSE celkové
            for (int o = 0; o < sse_count.Length; o++)
            {
                result = result + sse_count[o];
            }
            sse = result;

            if (changed == false)
            {
                return(false);
            }
            if (IsClusterEmpty(_normalizedDataToCluster))
            {
                return(false);
            }
            return(true);
        }
コード例 #2
0
 private bool AddDataRow(int key, TValue val)
 {
     if (HasDataRow(key))
     {
         return(false);
     }
     dataSet.Add(key, val);
     if (MinData == null || MinIndex.CompareTo(key) > 0)
     {
         MinData  = val;
         MinIndex = key;
     }
     if (MaxData == null || MaxIndex.CompareTo(key) < 0)
     {
         MaxData  = val;
         MaxIndex = key;
     }
     return(true);
 }