Dear R users,

How to change lattice panel label/text from the automatically generated
label (based on the conditioning) to our own set of label?

for example:

someStuff <- data.frame(area = rep(c("SOUTH", "NORTH", "EAST", "WEST"), each
= 25),
                group = rep(c("A","B","C","D"), each = 5),
                mytime = rep(1:4),
                val1 = sample(1:100, size=100, replace=TRUE),
                val2 = sample(1:100, size=100, replace=TRUE)
        )

xyplot(val1+val2 ~ mytime | area * group, data = someStuff, type = c("a",
"p", "g"))

I want to change each panel label/text from for example D/East or D/North
... into Deriv/From East, Deriv/From North ...

I know I could change from the data, but is there a way to change it from
lattice ?

thanks beforehand.

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