polyplot: Plot rankings on a permutation polytope of 3 o 4 objects containing all possible ties
Description
Plot rankings a permutation polytope that is the geometrical space of preference rankings. The plot is available for 3 or for 4 objects
Usage
polyplot(X = NULL, L = NULL, Wk = NULL, nobj = 3)
Arguments
X
the sample of rankings, most of the time as returned by tabulaterows
L
labels of the objects
Wk
frequency associated to each ranking
nobj
number of objects: 3 or 4
Details
polyplot() plots the universe of 3 objecys. polyplot(nobj=4) plots the universe of 4 objecys.
References
Thompson, G. L. (1993). Generalized permutation polytopes and exploratory graphical methods for ranked data. The Annals of Statistics, 1401-1430.
Heiser, W. J., & D'Ambrosio, A. (2013). Clustering and prediction of rankings within a Kemeny distance framework. In Algorithms from and for Nature and Life (pp. 19-31). Springer International Publishing.