Compute dcov/dcorr measures for independence testing
http://en.wikipedia.org/wiki/Distance_covariance
Functions
| dCOV(x, y[, rowvar, uv, all_est]) | Estimate dCov measure(s) between x and y. |
| dcorcoef(x, y[, rowvar, uv]) | Return dCor coefficient(s) only (convenience function). |