R Under development (unstable) (2024-07-10 r86888 ucrt) -- "Unsuffered Consequences"
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> ## Regression tests for `simpleboot'.
> ## Added 2004-10-15
> 
> library(simpleboot)
Simple Bootstrap Routines (1.1-8)
> 
> set.seed(1234)
> x <- runif(100)
> 
> ## Simple sine function simulation
> y <- sin(2*pi*x) + .2 * rnorm(100)
> lo <- loess(y ~ x, span = .4)
> 
> ## Bootstrap with resampling of rows
> lo.b <- loess.boot(lo, R = 500)
> 
> ## Purposely mask the sd() function; plot.loess.simpleboot() should
> ## get sd() from the `stats' package namespace
> sd <- function(...) { stop("error") }
> 
> doPlot <- function() {
+   postscript("plot-loess-test.eps", height = 7, width = 7)
+   on.exit(dev.off())
+   
+   ## Plot original fit with +/- 2 std. errors
+   plot(lo.b)
+ }
> 
> doPlot()
> 
> unlink("plot-loess-test.eps")
> 
> proc.time()
   user  system elapsed 
   1.26    0.10    1.36