fitctree (decision trees) does not work in the following simple example! why

executing the following code no warning/error message is occured. The graph is a dot and the predicrtion is error

clear; close all;

x=[1,3;

2,2;

1,4;

0,0;

3,3];

c={'a'; 'a'; 'b'; 'b';'b'};

tr= fitctree(x,c)

view(tr,'Mode','graph')

label = predict(tr,x(1,:))

[Steven Lord]

What does "does non[sic] work" mean here?

• Do you receive warning and/or error messages? If so the full and exact text of those messages (all the text displayed in orange and/or red in the Command Window) may be useful in determining what's going on and how to avoid the warning and/or error.
• Does it do something different than what you expected? If so, what did it do and what did you expect it to do?
• Did MATLAB crash? If so please send the crash log file (with a description of what you were running or doing in MATLAB when the crash occured) to Technical Support using the Contact Support link on the Support section of the MathWorks website so we can investigate.

[Charalampos Strouthopoulos]

does not work'

no error message is occured. the graph is a dot and the prediction is error