How to test only one row ?

Hi, I have code for test data the result between ttes and pred_tes is equivalent.

Now I want only test one row, where the input is value feature extraction from the image I input, But the result I get is not equivalent with the target I want and I always get same result for another image I input. Please help me to fix my code, Which one in my code below not right? I get difficult when I want make code which read only one row.

[Oman Wisni]

Hii, I still looking for this answer, I not get result. why I only get one class, although I already tes using different leaf

[GT]

if you can share the *.mat files that would make it easier for others to reproduce your code. (if they are confidential, dummy mat files would be fine too).

[Oman Wisni]

thanks for the answer sir, I already get the answer.