[R] Cohen's Kappa for beginners
lists at revelle.net
Tue May 25 22:28:11 CEST 2010
At 9:55 AM -0700 5/25/10, Jason Priem wrote:
>Thanks for you quick responses, all! Bill, it looks like that's just what I
>want, but I'm not sure where you're getting the cohen.kappa() function. The
>only function I could find by that name is in the concord library, and it
>> x<-c("red", "yellow", "blue", "red") #coder number 1
>> y<-c("red", "blue", "blue", "red") #coder number 2
>> ck <- cohen.kappa(cbind(x,y))
>Error in counts[i, j] <- sum(scores[i, ] == score.levels[j], na.rm = TRUE) :
> subscript out of bounds
>In addition: Warning messages:
>1: NAs introduced by coercion
>2: NAs introduced by coercion
>wkappa in the psych lib gives me
>Error in tr(x) : m must be a square matrix
Sorry for the confusion.
cohen.kappa was introduced in the psych package version of 1.0.86 in March.
The current release is 1.0.88.
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