Median Direction

From Kanti V. Mardia & Peter E. Jupp, "Directional Statistics", Wiley, 2000

mctad.medianDirection = function (data) {

Mardia & Jupp describe the conditions, but not the calculations! The median_direction is any angle θ such that (i) half of the data points lie in the in the arc [θ, θ + π) and (ii) the majority are nearer to θ than to θ + π They don't use it after introducing it, so: low priority

};