Correlation matrix between the morpho-functional descriptors CD, K, O and H.

Each cell of the table displays function (r, P1, P2). r is the coefficient of correlation of Pearson and P1 is the value associated with the probability test of uncorrelation between variables. P2 is the value of probability of uncorrelation between variables associated with non parametric Spearman's Rank Correlation Test. The number of individuals n = 27. Bold values: statistically correlated values. Regular values: not statistically correlated values. CD: chewing direction; K: kurtosis of the crow slope distribution. O: average cusp lowest slope orientation of protocone, paracone, hypocone, and metacone. H: hypsodonty index.