# Tagged Questions

For questions about the data structures known as trees.

46 views

### TreePlot remove an arrow

Is it possible to make Mathematica make a connection to p2 from both SysVar 2 and SysVar3 like I drawn ? Code: ...
43 views

### TreePlot Vertex Labelling

I have plot: TreePlot[{1 -> 4, 1 -> 6, 1 -> 8, 2 -> 6, 3 -> 8, 4 -> 5, 7 -> 8}, VertexLabeling -> True] Can the labeling on the second level be done as 8, 6 ,4 while keeping the command vertex ...
629 views

### Drawing the schematic diagram of algorithm

The B-Spline function used the alogrithm as shown below: I would like to draw it in Mathematica (Although this is my first time to use TreePlot) ...
159 views

### Graph showing valid English words obtained by insertion of single characters

I'd like the most efficient Mathematica code for making a formal tree graph whose nodes are valid English word strings (in DictionaryLookup[ ]) and directed links represent the relation 'insertion of ...
97 views

### getting vertices in order from spanning tree

I've got spanning tree for some weighted graph (edges labeled 1-6) - for example: ...
77 views

### Adding a tree to a list of trees within a loop [duplicate]

I'm trying to write a function which for a list of trees checks if a given tree is isomorphic with any of the listed, and if not - adds it to the list. I tried to use both ...
63 views

### TreeForm expression that will automatically spread nodes vertically so labels do not overlap

My deeply and unevenly nested lists and equations generate a TreeForm image which is too small and compressed to use. Then we must expand it manually by grabbing the edge of the image, and sometimes ...
152 views

### How to generate a random binary tree with a given number of vertices and with a given shape, namely compact or elongated

I tried to generate a random binary tree with a Table of RandomInteger and to give a shape with a ...
121 views

### Create a Figure with a sequence of Balanced Binary Trees

I would like make the attached image by Mathematica. someone who could help me? Thank!
114 views

### CSS Selectors for Symbolic XML

Symbolic XML is a convenient way of managing XML in Mathematica, at least for casual use or small tasks. Here and elsewhere you can find examples of XML handling in Mathematica, including XSLT/XPath ...
244 views

### How to make Huffman coding by using tree representation

I want to make Huffman coding with Mathematica. I saw a demonstration, but it is not the thing I want to make. I want to show the tree for given string. Here is an example picture: You can see the ...
124 views

### Generate expressions equivalent to rooted trees

I would like to know how to generate all rooted trees on $n$ vertices using Mathematica? More precisely, I am interested in generating algebraic expressions equivalent to rooted trees and constructed ...
98 views

### Explore a nested list

This question is similar to Numbering nested list according with Depth (or Level) I have a list like ...
157 views

### TreeForm display with nested lists as nodes

If i have a nested list representing nodes in a binary tree, {3, {2, {1, None, None}, None}, None}, what is the easiest way to show the hierarchy, without all the ...
351 views

### Extracting text from nested HTML lists <ul> <li>

We wish to analyze the tree structure of HTML documents that consist of nested lists, ie, using the HTML tags <ul> and ...
83 views

### Some _atomic elements' TreeForm looks confusing with Level in appearance

In[1]:= Level[1/2,{-1}] Out[1]= {1/2} TreeForm[1/2] ...
138 views

### Table/Tree of values

My question: Is there a way to create a tree of values? Something like the output of the command TreeForm, but with values in the nodes? Why do I want this? I'm trying to do a complete program to ...
161 views

### How to make a simple tree yourself with defined distances for each generation?

I'm trying to make a function that generates a tree for spin spin analysis in spectroscopy. I though it would be pretty easy, but I'm totally stocked. The tree should look something like this: ...
419 views

### Visualizing directories

How do I plot the content of a directory and all its subdirectories into infinity using TreeForm? I've tried using a mix of ...
263 views

### Changing some stuff to Kruskal's Algorithm

I'm trying to modify this algorithm: http://demonstrations.wolfram.com/ConnectingTownsUsingKruskalsAlgorithm/ The thing is that I want to receive a Graph (declared outside, with all its vertex, edges ...
2k views

### How to generate a random tree?

Is it possible to generate a random tree without explicitly constructing a random adjacency matrix that satisfies tree properties? How about a random directed tree? Edit: incredible answer by ...
401 views

### Transform an expression into a graph that can be plotted with TreeGraph (not TreeForm)

I would like to plot an expression (like TreeForm does), but using the new TreeGraph functionality. ...
424 views

### How can I regroup elements in a list into a tree based on their values?

I have a list of elements in an outline, here is an example that is only 3 levels deep: ...
505 views

### Visiting nodes in a tree bottom up

I have a problem that can be reduced to this one: Suppose I have an unbalanced (almost random) tree. The leaves of the tree have one property already set, and all vertex (including the leaves) have ...
255 views

### Access pairs of vectors, rather than the matrices, in partitioned data structure at a levelspec

I have some old code to analyze correlation between 2 time series by looking at windows of different lengths shifting across the time series data. The code: gets 2 sets of time series data (in ...
221 views

### Leave expression tree formatting the same when a replacement rule is applied

If I type e1 := 3 x + 2 (1 + y) z // TreeForm, I get an expression tree. If I then type e1 /. x -> 3, I get another ...