massey {raincin}

Massey's method for Rating and Ranking

Description

Calculate ratings and provide rankings using Massey's method, Masseyized Colley method, Massey's method–no ties, Masseyized Colley method–no ties

Usage

massey(jpMat, method = "massey", ties.method = "average")

Arguments

jpMat

a Judge-Presenter matrix, or a User-Movie matrix

method

a character string specifying Massey's method, including "massey", "masseyc", "masseynt" and "masseycnt"

ties.method

a character string specifying how ties are treated, including "average", "first", "last", "random", "max", "min", from base::rank

Details

1. massey: Massey's method

2. masseyc: Masseyized Colley method

3. masseynt: Massey's method, no ties

4. masseycnt: Masseyized Colley method, no ties

Author(s)

Jiangtao Gou

References

Gou, J. and Wu, S. (2020). A Judging System for Project Showcase: Rating and Ranking with Incomplete Information. Technical Report.

Langville, A. N. and Meyer, C. D. (2012). Who's Number 1?: The Science of Rating and Ranking. Princeton University Press.

Massey, K. (1997). Statistical models applied to the rating of sports teams. Bachelor's Thesis, Blueeld College.

Examples

jpMat <- matrix(data=c(5,4,3,0, 5,5,3,1, 0,0,0,5, 0,0,2,0, 4,0,0,3, 1,0,0,4),
nrow=6,
byrow=TRUE)
result <- massey(jpMat, method='massey')
print(result)