Classification regression tree structure

1 view (last 30 days)
Sincloe Brans
Sincloe Brans on 13 Aug 2014
Edited: the cyclist on 20 Aug 2014
Has anyone used
clasregtree
function to build a tree with numerical responses (Y)? If yes then any idea how the means (Y bar) at each leaf (terminal nodes) is calculated?
Thanks

Answers (1)

the cyclist
the cyclist on 13 Aug 2014
Have you tried reading the documentation?
doc classregtree
or looking at the code?
edit classregtree
  4 Comments
Sincloe Brans
Sincloe Brans on 19 Aug 2014
Attached is the function, actually classregtree is a class which I have no idea how to edit or get the intermediate results. If you look at line 746, ybar is calculated. Any idea on how to obtain that?
the cyclist
the cyclist on 20 Aug 2014
Edited: the cyclist on 20 Aug 2014
I suggest you take a look at this page about debugging MATLAB.
Where you first call classregtree, you should be able to set a breakpoint, and then step through the function line-by-line to see the values all variables during the calculation.

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!