Results of multivariate linear regressions with r as the dependent variable.

R squared is reported for each model. The R scores of the fitted models indicate their capability to explain some of the variation in the median rank. Most of the features have a statistically significant effect on the normalized rank. A multivariate linear regression has also be fitted on the median score. The coefficients and p values of the features can be found in Supplementary Material (S1 Text). Both approaches lead to similar conclusions.