how to display the tree structure?

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Samuel Chandu 2016-8-20

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评论： Simon 2023-10-9

I am trying to understand how to build a tree through MATLAB. I went to the below link as suggested my MATLAB for understanding this concept. http://tinevez.github.io/matlab-tree/TreeDemo/TreeDemo_creating.html

In that they specified that for displaying the tree the following code should be used:

disp(t.tostring)

this appears after that

No appropriate method, property, or field 'tostring' for class 'tree'.

in the above link they gave tostring.m so I added this to current folder but still the same thing appears:

No appropriate method, property, or field 'tostring' for class 'tree'.

appreciate your time,

thanks, Samuel.

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Answer 1

per isakson 2016-8-20

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https://ww2.mathworks.cn/matlabcentral/answers/300247-how-to-display-the-tree-structure#answer_232312

编辑：per isakson 2016-8-20

在 MATLAB Online 中打开

You provide too little information to spot the cause of your problem. How did you create the tree, t?

I think the documentation of this class is good.

This example is copied from the documentation. (The class is installed on my machine.)

>> lineage = tree.example;
>> t = lineage.subtree(19);
>> disp(t.tostring)
             EMS              
    +---------+----+          
    |              |          
   MS              E          
  +-+--+      +----+----+     
  |    |      |         |     
 MSa  MSp    Ea        Ep     
            +-+--+    +-+--+  
            |    |    |    |  
           Eal  Ear  Epl  Epr

and

>> disp(lineage.tostring)
                                                       Zygote                                                        
                           +-----------------------------+----------------------------+                              
                           |                                                          |                              
                          AB                                                         P1                              
             +-------------+-------------+                             +-------------+---------------+               
             |                           |                             |                             |               
            ABa                         ABp                           P2                            EMS              
      +------+------+             +------+------+            +--------+-----+              +---------+----+          
      |             |             |             |            |              |              |              |          
    ABal          ABar          ABpl          ABpr          P3              C             MS              E          
   +--+---+      +--+---+      +--+---+      +--+---+      ++----+     +----+----+       +-+--+      +----+----+     
   |      |      |      |      |      |      |      |      |     |     |         |       |    |      |         |     
 ABala  ABalp  ABara  ABarp  ABpla  ABplp  ABpra  ABprp   P4     D    Ca        Cp      MSa  MSp    Ea        Ep     
                                                         +-+-+       +-+--+    +-+--+              +-+--+    +-+--+  
                                                         |   |       |    |    |    |              |    |    |    |  
                                                        Z2  Z3      Caa  Cap  Cpa  Cpp            Eal  Ear  Epl  Epr 
>>

&nbsp

I guess, something is wrong with your installation of the class, tree. You should just copy the folder, @tree, and all of it's content to a folder that is in the Matlab search path.

Verify that Matlab finds tree

>> which tree
H:\m\FEX\InUse\TreeDataStructure\@tree\tree.m  % tree constructor

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Samuel Chandu 2016-8-20

Thank you Sir it works.

Simon 2023-10-9

@per isakson Thanks for your tree class. It seems to be what I need. What I want to do is design a couple folder trees for my project. I have tried some flowchart and mindmap apps. They are not flexible to manipulate so not helpful for experimenting with different kind of folder tree. I am going to try your tree class out.

BTW, when you do a large umbrella project, under which there are large subprojects. The subprojects should be done sequentially. Do you have any suggestion for better folder structure? My first layout is project 1 (code, data, figure, ...), project 2 (code, data, figure, ...). Second layout is code (project 1, project 2, ...), data (project 1, project 2, ...), and figure (project 1, project 2, ...)

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