2.4.6. Comparison of the methodologies
Sample configurations in the first and second dimensions of each methodology were compared using the RV coefficient. This coefficient depends on the relative position of the points in the configuration and therefore is independent of rotation and translation. It takes the value of 0 if the configurations are uncorrelated and the value of 1 if the configurations are homothetic. A permutation test was used to evaluate the significance of the RV coefficient