R Under development (unstable) (2024-03-19 r86153 ucrt) -- "Unsuffered Consequences"
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> 
> postscript("date.ps")
> library(lattice)
> 
> ## POSIXt handling
> 
> y <- Sys.time() + 10000 * 1:100
> x <- rnorm(100)
> b <- gl(3,1,100)
> 
> xyplot(y ~ x | b)
> xyplot(y ~ x | b, scales = list(relation = "free", rot = 0))
> xyplot(y ~ x | b, scales = "sliced")
> 
> ## Date handling
> 
> dat <-
+     data.frame(a = 1:10,
+                b = seq(as.Date("2003/1/1"), as.Date("2003/1/10"), by="day"))
> xyplot(a~b, dat)
> xyplot(a~b, dat, scales=list(x=list(at=dat$b)))
> 
> 
> dev.off()
null device 
          1 
> 
> 
> proc.time()
   user  system elapsed 
   0.70    0.09    0.75