It's not a p-value, it's Spearman's rho, or rank correlation coefficient. It's a value in [-1,1] and when deviating from zero indicates a statistically dependen

It's not a p-value, it's Spearman's rho, or rank correlation coefficient. It's a value in [-1,1] and when deviating from zero indicates a statistically dependent relationship: http://en.wikipedia.org/wiki/Spearman%27s_rank_correlation_coefficient http://en.wikipedia.org/wiki/Spearman%27s_rank_correlation_c...