



Hello, I have 50 raters and 180 cases which are rated as malignant, probably malignant, probably benign, and benign.   I want to compare all the raters but I want a weighted kappa to penalize differences between malignant and benign more than differences between malignant and probably malignant.   I only found the weighted option in the 2-rater functions (kappa2, wkappa, cohen.kappa).  The functions I found for multiple raters do not include a weighted option for categorical data (kappam.fleiss, kappam.light, lkappa).   Anyone know a function that allows the calculation of weighted kappa for m raters?   Thanks in advance! ~Marwa 		 	   		  
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