[R] Fliess Kappa

[Sunita22]

Hello Everyone

I am calculating Fleiss Kappa, I have 28 raters, 5 Subjects and 5 ratings
(i.e. A dataset with 28 columns and 5 rows). The problem is that there are 2
missing values in the data. (Right now I have manually deleted the values in
csv file and then imported it in R

1) Would it better to replace those with "0" or should those be omitted? By
omission I will be left with only 26 raters.

2) Also when we use na.omit(objectname) it deleted missing values row-wise,
how can data be omitted column-wise?

3) My second problem is that overall agreement comes to zero, whereas the
data is not showing agreement to be close to zero. The ratings 4 and 5 are
being given maximum time (the ratings are 1: total disagreement and 5: Total
Agreement) whereas for 1 and 2 its very less.

Results I got using agree()
> agree(demoA)
 Percentage agreement (Tolerance=0)

 Subjects = 5
   Raters = 26
  %-agree = 0

can any1 point where I might be wrong?

4) Can we calculate percentage of agreement for each subject? If yes how?

Please help me for these queries

Thank you very much in advance
Regards
Sunita
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