Hi all,

 

I tried to do a variance components using nlme, but I got the following
warning mesage

 

#####################################################

not meaningful for factors in: Ops.factor(y[revOrder], Fitted)

######################################################

 

Can someone point out what is the meaning of this warning message? I
tried to look at Ops.factor, but I don't understand it since I'm
relatively new to R.  Thanks.

 

Yen Lin


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