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

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> ### * <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("udunits-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('udunits')
> 
> assign(".oldSearch", search(), env = .CheckExEnv)
> assign(".oldNS", loadedNamespaces(), env = .CheckExEnv)
> cleanEx(); ..nameEx <- "print.utDate"
> 
> ### * print.utDate
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: print.utDate
> ### Title: Print a Formatted Calendar Date
> ### Aliases: print.utDate
> ### Keywords: utilities
> 
> ### ** Examples
> 
> # Make a 'utDate' object by hand.  This class of object is also
> # returned by function 'utCalendar()'
> date <- list() 
> class(date) <- "utDate"
> date$year   <- 1990
> date$month  <- 6
> date$day    <- 15
> date$hour   <- 12
> date$minute <- 30 
> date$second <- 10.0
> 
> print(date)     # default format is "full"
[1] "1990/06/15 12:30"
> 
> # Turn the date into a character string without printing it
> s <- print(date,format="unix",quiet=TRUE)
> 
> print(paste("here is that date one more time:",s))
[1] "here is that date one more time: Fri Jun 15 12:30 1990"
> 
> # Note that if you want a formatted date INSIDE a paste call, you 
> # have to call print with quiet=TRUE, like this:
> print(paste("Yet another way of formatting the date:",print(date,format="sci",quiet=TRUE)))
[1] "Yet another way of formatting the date: 15 Jun 1990"
> 
> 
> 
> cleanEx(); ..nameEx <- "utCalendar"
> 
> ### * utCalendar
> 
> flush(stderr()); flush(stdout())
udunits(3): Couldn't open units database "/Users/jago/udunits-1.12.4/etc/udunits.dat": No such file or directory
utInit (R version): error: units file not found!
Set environmental variable UDUNITS_PATH to the fully
qualified filename of the udunits units file
(usually named udunits.dat, often found in /usr/local/lib)
> 
> ### Name: utCalendar
> ### Title: Convert Temporal Amounts to Calendar Date
> ### Aliases: utCalendar
> ### Keywords: utilities
> 
> ### ** Examples
> 
> # Initialize the udunits library
> utInit()
Error in utInit() : Error in utInit
Execution halted