Kendall-Tau correlation

Hi Jerry,
Are you planning to implement the calc_swap_deltas method for KT metrics?
As I remember there is a build-in function in scipy to calculate KT.
Thanks

Hi Chris, the scipy function for KT won't really help for calc_swap_deltas since we'd still have to run it O(n^2) times for a total runtime of O(n^4). However, there is a fairly straightforward O(n^2) algorithm for calculating the swap deltas -- will leave this issue open in case anyone wants to tackle it.