coincidence.matrix {concord}R Documentation

calculate the concordance/discordance matrix for Krippendorff's alpha

Description

calculates the coincidence matrix for Krippendorff's alpha.

Usage

coincidence.matrix(x)

Arguments

x classifier by object matrix of classifications

Details

probably of no use by itself.

Value

statistic always NA - value is calculated by kripp.alpha
coincidence.matrix the concordance/discordance matrix used in the calculation of alpha
data.values a character vector of the original data values
nmatchval the count of matches, used in calculation
data.level the data level is specified by kripp.alpha

Note

This is the initial step in calculating Krippendorff's alpha coefficient.

Author(s)

Jim Lemon

References

Krippendorff, K. (1980) Content analysis: An introduction to its methodology. Beverly Hills, CA: Sage.

See Also

kripp.alpha

Examples

 # the "C" data from Krippendorff
 nmm<-matrix(c(1,1,NA,1,2,2,3,2,3,3,3,3,3,3,3,3,2,2,2,2,1,2,3,4,4,4,4,4,
 1,1,2,1,2,2,2,2,NA,5,5,5,NA,NA,1,1,NA,NA,3,NA),nrow=4)
 coincidence.matrix(nmm)

[Package concord version 1.4-9 Index]