[R] two questions re: the use of lattice (Q1 SOLVED, not Q2)

[Ranjan Maitra]

> Just reset the levels of z$sigma (and also redefine sigmaExpr):
> 
>    z$sigma <- factor(z$sigma,
>                    levels = c(5,10,20,30,50))  # new levels order
> 
>    sigmaExprList <- lapply(as.numeric(levels(z$sigma)),
>                            function(s) bquote(sigma == .(s)))
>    sigmaExpr <- as.expression(sigmaExprList)
>    INUExpr <- paste0("INU = ", c(0,20,40), "%")
> 
>    p <- bwplot(Error ~ Method | sigma + INU, data = z,
>           scales = list(rot=90), horiz = FALSE,
>           layout = c(5,3), col = "red")
> 
>    useOuterStrips(p,
>       strip = strip.custom(
>            factor.levels = sigmaExpr),
>       strip.left = strip.custom(
>            factor.levels = INUExpr)
>    )
> 

One last question: how do I draw a line h = 0, lty =2 through each plot?

Thanks a lot, this has been quite a learning experience for me wrt
lattice!

Ranjan

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