Nothing
library(orca)
data(usastates)
n <- max(usastates)
p <- sample(1:n)
usastates.p <- apply(usastates, c(1,2), function(x) p[x])
o <- count5(usastates)
op <- count5(usastates.p)
all(o == op[p,])
e <- ecount5(usastates)
ep <- ecount5(usastates.p)
all(e == ep)
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