R : Copyright 2005, The R Foundation for Statistical Computing
Version 2.1.1  (2005-06-20), ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for a HTML browser interface to help.
Type 'q()' to quit R.

> ### * <HEADER>
> ###
> attach(NULL, name = "CheckExEnv")
> assign(".CheckExEnv", as.environment(2), pos = length(search())) # base
> ## add some hooks to label plot pages for base and grid graphics
> setHook("plot.new", ".newplot.hook")
> setHook("persp", ".newplot.hook")
> setHook("grid.newpage", ".gridplot.hook")
> 
> assign("cleanEx",
+        function(env = .GlobalEnv) {
+ 	   rm(list = ls(envir = env, all.names = TRUE), envir = env)
+            RNGkind("default", "default")
+ 	   set.seed(1)
+    	   options(warn = 1)
+ 	   delayedAssign("T", stop("T used instead of TRUE"),
+ 		  assign.env = .CheckExEnv)
+ 	   delayedAssign("F", stop("F used instead of FALSE"),
+ 		  assign.env = .CheckExEnv)
+ 	   sch <- search()
+ 	   newitems <- sch[! sch %in% .oldSearch]
+ 	   for(item in rev(newitems))
+                eval(substitute(detach(item), list(item=item)))
+ 	   missitems <- .oldSearch[! .oldSearch %in% sch]
+ 	   if(length(missitems))
+ 	       warning("items ", paste(missitems, collapse=", "),
+ 		       " have been removed from the search path")
+        },
+        env = .CheckExEnv)
> assign("..nameEx", "__{must remake R-ex/*.R}__", env = .CheckExEnv) # for now
> assign("ptime", proc.time(), env = .CheckExEnv)
> grDevices::postscript("pspline-Examples.ps")
> assign("par.postscript", graphics::par(no.readonly = TRUE), env = .CheckExEnv)
> options(contrasts = c(unordered = "contr.treatment", ordered = "contr.poly"))
> options(warn = 1)    
> library('pspline')
> 
> assign(".oldSearch", search(), env = .CheckExEnv)
> assign(".oldNS", loadedNamespaces(), env = .CheckExEnv)
> cleanEx(); ..nameEx <- "predict.smooth.Pspline"
> 
> ### * predict.smooth.Pspline
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: predict.smooth.Pspline
> ### Title: Smoothing Spline of Arbitrary Order at New Data
> ### Aliases: predict.smooth.Pspline
> ### Keywords: smooth
> 
> ### ** Examples
> 
> example(smooth.Pspline)

smth.P> data(cars)

smth.P> attach(cars)

smth.P> plot(speed, dist, main = "data(cars)  &  smoothing splines")

smth.P> cars.spl <- sm.spline(speed, dist)

smth.P> cars.spl
Call:
smooth.Pspline(x = ux, y = tmp[, 1], w = tmp[, 2], method = method)

Smoothing Parameter (Spar): 366.8429 
Equivalent Degrees of Freedom (Df): 2.428851 
GCV Criterion: 29.54554 
CV  Criterion: 39.18787 

smth.P> lines(cars.spl, col = "blue")

smth.P> lines(sm.spline(speed, dist, df = 10), lty = 2, col = "red")
> ## smoother line is given by
> xx <- seq(4, 25, length=100)
> lines(xx, predict(sm.spline(speed, dist, df=5), xx), col = "red")
> ## add plots of derivatives
> lines(xx, 10*predict(sm.spline(speed, dist), xx, 1), col = "blue")
> lines(xx, 100*predict(sm.spline(speed, dist), xx, 2), col = "green")
> 
> 
> 
> cleanEx(); ..nameEx <- "smooth.Pspline"
> 
> ### * smooth.Pspline
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: smooth.Pspline
> ### Title: Fit a Polynomial Smoothing Spline of Arbitrary Order
> ### Aliases: smooth.Pspline lines.smooth.Pspline plot.smooth.Pspline
> ###   print.smooth.Pspline sm.spline
> ### Keywords: smooth
> 
> ### ** Examples
> 
> data(cars)
> attach(cars)
> plot(speed, dist, main = "data(cars)  &  smoothing splines")
> cars.spl <- sm.spline(speed, dist)
> cars.spl
Call:
smooth.Pspline(x = ux, y = tmp[, 1], w = tmp[, 2], method = method)

Smoothing Parameter (Spar): 366.8429 
Equivalent Degrees of Freedom (Df): 2.428851 
GCV Criterion: 29.54554 
CV  Criterion: 39.18787 
> lines(cars.spl, col = "blue")
> lines(sm.spline(speed, dist, df=10), lty=2, col = "red")
> 
> 
> 
> ### * <FOOTER>
> ###
> cat("Time elapsed: ", proc.time() - get("ptime", env = .CheckExEnv),"\n")
Time elapsed:  0.2 0.01 0.23 0 0 
> grDevices::dev.off()
null device 
          1 
> ###
> ### Local variables: ***
> ### mode: outline-minor ***
> ### outline-regexp: "\\(> \\)?### [*]+" ***
> ### End: ***
> quit('no')