The P-value returned is for the null hypothesis that the calculated Wheatsheaf index is no higher than expected by chance given the topology of the phylogenetic tree. Note that this is not a test for convergence per se, but of whether the convergence is unusually strong.
Functions to calculating the Wheatsheaf index of the strength of convergent evolution and testing whether this represents stronger convergence than expected.
Takes a phylo object and trait data and returns the Wheatsheaf index for the traits on the tree along with 95% confidence intervals obtained from jackkniving.
providing 
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