I was recently updating an analyses using RMark. I did exactly what I've done before with:
Daisy<-convert.inp("390ckb.inp", group.df=data.frame(Grz.lbl=c("Grazed", "Ungrazed")))
followed by
Daisy.proc<-process.data(Daisy, model="RDOccupPG", groups="Grz.lbl",
time.intervals = c(0,1,0,0,1,0,0,1,0,0,1,0))
However, I get an error
In process.data(Daisy, model = "RDOccupPG", groups = "Grz.lbl", :
Grz.lbl is not a factor variable. Coercing to factor.
I re-ran it with the old data and got the same message. Has something changed? I did not see any other discussions of this.