distKendall: Kendall distance between two ranks
In Rankcluster: Model-Based Clustering for Multivariate Partial Ranking Data

Description Usage Arguments Value Author(s) References Examples

The Kendall distance between two ranks is the number of pairs that are in different order in the two ranks.

1	distKendall(x, y, type = "ordering")

`x, y`	two ranks of size m.
`type`	type of the rank representation ("ordering" ou "ranking").

an integer, the Kendall distance between x and y.

Julien Jacques

A New Measure of Rank Correlation, M. G. Kendall

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x <- 1:5
y <- c(2, 3, 1, 4, 5)
distKendall(x, y, type = "ordering")

WARNING : Since Rancluster 0.92, the ranks have to be given to the package in the ranking notation (see convertRank function), with the following convention :
- missing positions are replaced by 0
- tied are replaced by the lowest position they share
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