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ricccoefficients

Running an ICC analysis

Cannot run an ICC analysis in R

I have loaded my data from excel spreadsheet and have tried the following: ICC(CMI)

I have removed my row names. I am not sure if I need to convert my columns or use a difference approach. I have loaded the Psych package.

This is my code: ICC(Test) This is what comes back:

Error in stack.data.frame(x) : no vector columns were selected

Not sure of what this means or how to fix this? Thanks in advance for any help. I really appreciate it.

Solution

  • I had the same problem with a dataset. I suggest you try:

    ICC(as.matrix(Test))

    . This worked for me. Otherwise, type help(ICC) and check the example and compare the procedure used there compared to your data.

    Good luck!