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Aug 29, 2020 at 12:37 comment added develarist @Xi'an he means a 3D plot of 2 variables. In the second image, axes $x$ and $y$ are the 2 variables, while the 3rd dimension, the vertical axis $z$, is the joint probability value. So the question is about ranking paired observations from 2 variables only, not 3.
May 28, 2015 at 6:26 comment added Xi'an @Fred: how do you order 3d data???
Mar 10, 2015 at 23:30 review First posts
Mar 11, 2015 at 0:29
Mar 10, 2015 at 23:29 comment added Fred I added some more information. I am trying to compute the joint cdf of a set of 3d empirical copula (I said 2d here for simplification) and the order is just sorted data
Mar 10, 2015 at 23:24 history answered ruchele CC BY-SA 3.0