Hi

I am trying to run a Generalised Estimating Equations (GEE) analysis but keep reaching this error message:

"There are at least two records with the same values for the subject and within-subject variables. No output will be displayed."

Here are my analyses. I have checked and there are NO replicates it speaks of, so must be something about how data is set up

I am analysing the effect of numerous social variables on the likelihood of reconciliation between two chimpanzees following a fight

I have 20 individuals who thus can therfore be either the aggressor or the victim. the number of fights between each dyad, and per individual is very variable.

To control for the identity of the victim and the aggressor, I entered Victim ID as subject variable and Aggressor ID as repeated-subjects variable (i.e. multiple fights within the same chimp pair)

this is when I get the error message....is it becuase the two variables-victim and aggressor are using the same codes?

Please help!!!

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