| (1) | \rho_s(x,y) = \rho_p(rg(x),rg(y)) = 1 - \frac{6}{n(n^2-1)} \sum_i \big( rg(x_i)-rg(y_i) \big)^2 |
where rg(x_i) and rg(x_i) are the ranks of elements x_i and y_i.
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| (1) | \rho_s(x,y) = \rho_p(rg(x),rg(y)) = 1 - \frac{6}{n(n^2-1)} \sum_i \big( rg(x_i)-rg(y_i) \big)^2 |
where rg(x_i) and rg(x_i) are the ranks of elements x_i and y_i.