function [ c ] = cValue( samples, labels )

acc = zeros(6,1);
parfor magn = -2:4
    svm_options = ['-s 0 -t 0 -q -h 1 -b 1 -v 5 -c ', num2str(10^(magn-2))];
    acc(magn+3) = svmtrain(labels, samples, svm_options);
end

[ ~ , c ] = min(acc);
c = c-3;
end