Tup.Mahout4Net.Fpm.PfpGrowth.FPGrowth.FPTree.Resize C# (CSharp) Method

        private void Resize()
        {
            int size = (int)(GROWTH_RATE * nodes);
            if (size < DEFAULT_INITIAL_SIZE)
            {
                size = DEFAULT_INITIAL_SIZE;
            }

            int[] oldChildCount = childCount;
            int[] oldAttribute = attribute;
            long[] oldnodeCount = nodeCount;
            int[] oldParent = parent;
            int[] oldNext = next;
            int[][] oldNodeChildren = nodeChildren;
            int[] oldConditional = conditional;

            childCount = new int[size];
            attribute = new int[size];
            nodeCount = new long[size];
            parent = new int[size];
            next = new int[size];

            nodeChildren = new int[size][];
            conditional = new int[size];

            Array.Copy(oldChildCount, 0, this.childCount, 0, nodes);
            Array.Copy(oldAttribute, 0, this.attribute, 0, nodes);
            Array.Copy(oldnodeCount, 0, this.nodeCount, 0, nodes);
            Array.Copy(oldParent, 0, this.parent, 0, nodes);
            Array.Copy(oldNext, 0, this.next, 0, nodes);
            Array.Copy(oldNodeChildren, 0, this.nodeChildren, 0, nodes);
            Array.Copy(oldConditional, 0, this.conditional, 0, nodes);
        }