matching row samples to class labels

Question

I have a small problem with the below code the last line to be specific, I am attempting to find the class names of my \"sample\" by that I mean I need to know which normal and

Answer 1

Is this what you mean? :

%
shuffle = randperm(1000);
sample = sample(shuffle,:);

%
idx = [a ; p];
K1 = Book2(idx (shuffle), :);