On Feb 9, 2011, at 3:29 PM, matthew.schmidt wrote:
I'm a newb with R and am trying to move from proprietary stats tools to openones. Hopefully this post might help others doing the same. I downloaded the R package for Mac
Posted to the wrong list.
and hacked together a couple scripts, butcouldn't seem to get the right output. After installing the psych package, I tried the test script included in this thread on the console, but I gotsimilar results to a prior poster:x[1] "red" "yellow" "blue" "red"y[1] "red" "blue" "blue" "red"Error in counts[i, j] <- sum(scores[i, ] == score.levels[j], na.rm = TRUE) :ck <- cohen.kappa(cbind(x,y))subscript out of bounds In addition: Warning messages: 1: NAs introduced by coercion 2: NAs introduced by coercionSince I got the impression that there may be a version problem, I updated the psych package to the most recent version, 1.0-94 (from source). After this, I tried over and over to run the cohen.kappa command, and still keptgetting the same error.So I quit R and restarted it, then went to the package manager and selected the checkbox next to "psych" to load it, and tried to re-run the command.This time I got the expected output: Call: cohen.kappa1(x = x, w = w, n.obs = n.obs, alpha = alpha) Cohen Kappa and Weighted Kappa correlation coefficients and confidence boundaries lower estimate upper unweighted kappa 0.098 0.6 1.10 weighted kappa -0.693 0.0 0.69 Number of subjects = 4Lesson learned: close and restart the Mac client if you're using the GUIfront-end in order for changes to the package manager to take effect.
I have a small screenshot for you to look at:
Refresh.list.pdf
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David Winsemius, MD West Hartford, CT
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