ConsRank (version 2.1.5)

iwcombinpmatr: Item-weighted Combined input matrix of a data set

Description

Compute the item-weighted Combined input matrix of a data set as defined by Albano and Plaia (2021)

Usage

iwcombinpmatr(X, w, Wk = NULL)

Value

The M by M item-weighted combined input matrix

Arguments

X

A data matrix N by M, in which there are N judges and M objects to be judged. Each row is a ranking of the objects which are represented by the columns. Alternatively X can contain the rankings observed only once. In this case the argument Wk must be used

w

A M-dimensional row vector (individually weighted items), or a M by M matrix (item similarities)

Wk

Optional: the frequency of each ranking in the data

Author

Alessandro Albano
Antonella Plaia

References

Emond, E. J., and Mason, D. W. (2002). A new rank correlation coefficient with application to the consensus ranking problem. Journal of Multi-Criteria Decision Analysis, 11(1), 17-28.
Albano, A. and Plaia, A. (2021). Element weighted Kemeny distance for ranking data. Electronic Journal of Applied Statistical Analysis, doi: 10.1285/i20705948v14n1p117

See Also

tabulaterows frequency distribution of a ranking data.

combinpmatr combined input matrix of a ranking data set.

Examples

data(sports)
np <- dim(sports)[2]
P <- matrix(NA,nrow=np,ncol=np)
P[1,] <- c(0,5,5,10,10,10,10)
P[2,] <- c(5,0,5,10,10,10,10)
P[3,] <- c(5,5,0,10,10,10,10)
P[4,] <- c(10,10,10,0,5,5,5)
P[5,] <- c(10,10,10,5,0,5,5)
P[6,] <- c(10,10,10,5,5,0,5)
P[7,] <- c(10,10,10,5,5,5,0)
CIW <- iwcombinpmatr(sports,w=P)