data =[ ...
    [0.0489,    0.4018];  ...
    [-0.1256,   0.3799];  ...
    [-0.2640,   -0.0327]; ...
    [0.0314,    0.6622];  ...
    [0.1129,    0.2014]];

signrank(data(:, 1), data(:,2), "method", "approximate")
signrank(data(:, 1), data(:,2), 'method', 'exact')