R Under development (unstable) (2023-10-21 r85382 ucrt) -- "Unsuffered Consequences"
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> 
> ## Allow custom widths for barcharts? Currently allowed (without NSE),
> ## but could be improved.
> 
> pdf("barchart-width.pdf")
> 
> library(lattice)
> x <- 1:10
> names(x) <- sample(LETTERS, 10)
> barchart(x, origin = 0)
> 
> barchart(x, origin = 0, box.width = runif(5))
> barchart(x, origin = 0, box.width = runif(5), horizontal = FALSE)
> 
> d <- within(expand.grid(a = gl(4, 1), b = gl(10, 1)),
+ {
+     x <- rexp(40)
+     w <- 0.8 * runif(40)
+ })
> 
> barchart(b ~ x | a, data = d, origin = 0, box.width = d$w)
> barchart(b ~ x | a, data = d, origin = 0, box.width = d$w[1:10])
> 
> barchart(b ~ x, data = d, groups = a, box.width = d$w)
> 
> barchart(b ~ x, data = d, groups = a, stack = TRUE, box.width = d$w)
> barchart(x ~ b, data = d, groups = a, stack = TRUE, box.width = d$w)
> 
> dev.off()
null device 
          1 
> 
> proc.time()
   user  system elapsed 
   0.43    0.04    0.46