treenode

Extract the hierarchical structure of the nodes in a dendrogram or cluster

强颜欢笑 提交于 2019-12-06 06:00:44
问题 I would like to extract the hierarchical structure of the nodes of a dendrogram or cluster. For example in the next example: library(dendextend) dend15 <- c(1:5) %>% dist %>% hclust(method = "average") %>% as.dendrogram dend15 %>% plot The nodes are classified according their position in the dendrogram (see figure below) (Figure extracted from the dendextend package's tutorial) I would like to get all the nodes for each final leaf as the next output: (the labels are ordered from left to right

Is the root node an internal node?

∥☆過路亽.° 提交于 2019-12-05 17:26:32
问题 So I've looked around the web and a couple of questions here in stackoverflow here are the definition: Generally, an internal node is any node that is not a leaf (a node with no children) Non-leaf/Non-terminal/Internal node – has at least one child or descendant node with degree not equal to 0 As far as i understand it, it is a node which is not a leaf. I was about to conclude that the root is also an internal node but there seems to be some ambiguity on its definition as seen here: What is

make a tree from a table using golang?

那年仲夏 提交于 2019-12-05 08:23:16
I want to make a tree from a table. the table is as following: OrgID OrgName parentID A001 Dept 0 -----th top A002 subDept1 A001 A003 sub_subDept A002 A006 gran_subDept A003 A004 subDept2 A001 and i want the result is as following,how to do it using go: Dept --subDept1 ----sub_subDept ------gran_subDept --subDept2 If you want to parse the lines into a tree structure, this is a way to do it: package main import ( "bufio" "fmt" "io" "os" "strings" ) type Node struct { name string children []*Node } var ( nodeTable = map[string]*Node{} root *Node ) func add(id, name, parentId string) { fmt.Printf

JTree set background of node to non-opaque

守給你的承諾、 提交于 2019-12-05 04:08:21
Please have a look at the SSCCE. How can I make the non-selected tree nodes' background transparent. At the moment the background of non-selected nodes is white. My cell renderer, however, should paint it non-opaque if it is not selected (and green when selected...what it does). In the end I want non-selected nodes to be just text without background, since the area which is red in the SSCCE has a gradient fill in my application. import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.Container; import javax.swing.JFrame; import javax.swing.JScrollPane;

How can I determine if the selected node is a child or parent node in TreeView?

╄→尐↘猪︶ㄣ 提交于 2019-12-04 15:55:43
问题 How can I find out if the selected node is a child node or a parent node in the TreeView control? 回答1: Exactly how you implement such a check depends on how you define "child" and "parent" nodes. But there are two properties exposed by each TreeNode object that provide important information: The Nodes property returns the collection of TreeNode objects contained by that particular node. So, by simply checking to see how many child nodes the selected node contains, you can determine whether or

C# - TreeView: inserting node at certain position

二次信任 提交于 2019-12-04 10:21:54
How does one insert a new child to a particular node in a TreeView in C# WinForms? I've been clumsily stabbing at TreeViews for almost an hour and I'd like to use C#'s TreeView like this: treeView.getChildByName("bob").AddChild(new Node("bob's dog")); Here's what I tried last (which I think is at a level of hairiness which C# should never have allowed me to reach): tree.Nodes[item.name].Nodes.Add(new TreeNode("thing")); Needless to say, it doesn't work. Oh, and here's a lazy question: can you actually store objects in these nodes? Or does TreeNode only support strings and whatnot? (in which

Extract the hierarchical structure of the nodes in a dendrogram or cluster

风流意气都作罢 提交于 2019-12-04 09:55:52
I would like to extract the hierarchical structure of the nodes of a dendrogram or cluster. For example in the next example: library(dendextend) dend15 <- c(1:5) %>% dist %>% hclust(method = "average") %>% as.dendrogram dend15 %>% plot The nodes are classified according their position in the dendrogram (see figure below) (Figure extracted from the dendextend package's tutorial) I would like to get all the nodes for each final leaf as the next output: (the labels are ordered from left to right and from bottom to top) hierarchical structure leaf_1: 3-2-1 leaf_2: 4-2-1 leaf_3: 6-5-1 leaf_4: 8-7-5

Creating custom TreeView/TreeNode

佐手、 提交于 2019-12-04 09:38:45
I need to extend the TreeNode class such that I can add custom properties to each node (seeing as WebForms TreeNode doesn't include the Tag property). So this is my CustomTreeNode: public class CustomTreeNode : TreeNode { public CustomTreeNode() { } public CustomTreeNode(int nodeId, string nodeType) { NodeId = nodeId; NodeType = nodeType; } public string NodeType { get; set; } public int NodeId { get; set; } } If I create a CustomTreeNode and add it to a TreeView: CustomTreeNode node = new CustomTreeNode(1, "CustomType"); treeView.Nodes.Add(node); I would then get a casting exception doing the

TreeView with custom drawn TreeNode

老子叫甜甜 提交于 2019-12-04 06:25:14
问题 I am trying to add a custom icon near the text of a TreeNode, so the items could have a "checked/unchecked" state displayed. I don't want to use a checkbox for that. Any ideas? Thanks 回答1: Assuming you are using .net and Windows Forms. You must set DrawMode property of TreeView to TreeViewDrawMode.OwnerDrawAll. Once you do this, treeview's DrawNode event will fire each time a tree node is being drawn. Handle that event and draw your items manually. You will get DrawTreeNodeEventArgs as the

Implementing IEnumerable on a tree structure

杀马特。学长 韩版系。学妹 提交于 2019-12-04 04:41:58
问题 Based on the work of these guys: http://dvanderboom.wordpress.com/2008/03/15/treet-implementing-a-non-binary-tree-in-c/ http://www.matthidinger.com/archive/2009/02/08/asp.net-mvc-recursive-treeview-helper.aspx I am trying to implement a TreeView helper that would be used as such: <%= Html.TreeView("records", Library.Instance.Records, r => r.Children, r => r.ID) %> And the tree structure is defined like this: public class Tree<T> : TreeNode<T> where T : TreeNode<T> { } public class TreeNode<T>