Iteratively print matlab struct

I have a matlab struct with the following structure

Tree:

feature : numerical value (1)

tru: numerical value(2)

gain: numerical value(3)

left: struct with left node

right: struct with right node

How do i print this out int the for of a tree. for example i wanna print out for the root node

node 1 feature 1 , tru 2, gain 3

node 2 Contains data from left struct with the same structure as root node

node 3 contains data from right struct with the same structure as root node

i want to recursive print the entire tree using the same format

[Jan]

I do not understand the question. Can you post the code to create the struct in valuid Matlab syntax and create the wanted output manually?

[Anoop Somashekar]

I believe you want to recursively traverse the tree where each node of the tree is of type struct. Assuming that the tree is binary and the node structure only contains two nested structure of the same type(left and right), then you can simply define a function which recursively traverses the tree struct using isstruct property as shown:

function traverse(node)
    if isstruct(node)
        fprintf('%d %d\n', node.feat, node.gain);          

          if isstruct(node.left)
              traverse(node.left)
          end

          if isstruct(node.right)
              traverse(node.right)
          end
      end
  end

If the struct fields are dynamic then you could use fieldnames property to get all the fields of a given struct and getfield property to get the field value.