rater.bias {concord} | R Documentation |
calculates a coefficient of systematic bias between two raters
rater.bias(x)
x |
CxC classification matrix or matrix of classification scores into C categories. |
rater.bias
calculates a reliability coefficient for two raters
classifying n objects into any number of categories. It will accept either
a cxc classification matrix of counts of objects falling into c categories
or a 2xn or nx2 matrix of classification scores.
statistic |
value of coefficient |
p |
the probability of the coefficient as a df 1 Chi-square variable |
Jim Lemon
Bishop Y.M.M., Fienberg S.E. & Holland P.W. (1975) Discrete multivariate analysis: theory and practice. Cambridge, Massachusetts: MIT Press.
# fake a 2xn matrix of three way classification scores ratings<-matrix(sample(1:3,60,TRUE),nrow=2) rater.bias(ratings)