Hi, Le 27/10/2013 19:28, Freddie Witherden a écrit : > I wish to sort these points into a canonical order in a fashion which is > robust against small perturbations. In other words changing any > component of any of the points by an epsilon ~ 1e-12 should not affect > the resulting sorted order. Can you give more precision on what you mean by "canonical order". Since there is no natural order in R^n for n>1, I guess your problem is more about *defining* what is the order you want rather than *implementing* it in C/Python or whatever.
best, Pierre
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