visualize a tree and splitting point in TreeBagger

Hi, Suppose I fit a TreeBagger with 2 column predictor variables X:

B = TreeBagger(1,X,y, 'Method','classification','NVarToSample',1,'oobpred','on')

I want to visualize any tree that I choose, and the splitting values. How can I do that? Thanks!

Answer 1

[Ilya]

doc TreeBagger and take a look at the Trees property. For example, to see the first tree

view(B.Trees{1})

[Henry]

The suggestions works! thanks! But the documentation on Trees is very scarce. What you said isn't there... Thanks again

[Ilya]

What I said about the view method is not in the TreeBagger doc. Typing

B.Trees{1}

returns an object for a single tree. If you use R2013a or later, the class is included in the display of this object. (If you use an earlier release, you can infer the class of this object from the variable editor, for instance.) You can then go to the doc for that class.

[Henry]

Alright, thanks very much!

Answer 2

[Mohammad Abdulla]

Hi, How can I increase the number of iterations for fitting a decision tree or random forest? Also, how can I change the opimizer from Bayesian to other such as grid search