function [ cas ] = permTest( features, conds )
    PERM_NUM = 10e4;
    
    cas = zeros(1, PERM_NUM);
    
    parfor i=1:PERM_NUM
        permConds = conds(randperm(length(conds)));
        
        cas(i) = knnEvaluate(features, permConds);
        disp([num2str(i) ' - ' num2str(cas(i))]);
    end

    hist(cas);
    save('permutationsCas.mat','cas');
end