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("date-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('date')
> 
> assign(".oldSearch", search(), env = .CheckExEnv)
> assign(".oldNS", loadedNamespaces(), env = .CheckExEnv)
> cleanEx(); ..nameEx <- "as.date"
> 
> ### * as.date
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: as.date
> ### Title: Coerce Data to Dates
> ### Aliases: as.date
> ### Keywords: chron
> 
> ### ** Examples
> 
> as.date(c("1jan1960", "2jan1960", "31mar1960", "30jul1960"))
[1] 1Jan60  2Jan60  31Mar60 30Jul60
> 
> 
> 
> cleanEx(); ..nameEx <- "date.ddmmmyy"
> 
> ### * date.ddmmmyy
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: date.ddmmmyy
> ### Title: Format a Julian date
> ### Aliases: date.ddmmmyy
> ### Keywords: chron
> 
> ### ** Examples
> 
> date.ddmmmyy(1:10)
 [1] "2Jan60"  "3Jan60"  "4Jan60"  "5Jan60"  "6Jan60"  "7Jan60"  "8Jan60" 
 [8] "9Jan60"  "10Jan60" "11Jan60"
> 
> 
> 
> cleanEx(); ..nameEx <- "date.mdy"
> 
> ### * date.mdy
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: date.mdy
> ### Title: Convert from Julian Dates to Month, Day, and Year
> ### Aliases: date.mdy
> ### Keywords: chron
> 
> ### ** Examples
> 
> day <- 7
> temp <- date.mdy(mdy.date(month = 7, day = day, year = 1960))
> ## Check for illegal dates, such as 29 Feb in a non leap year
> if (temp$day != day) {
+   cat("Some illegal dates\n")
+ } else {
+   cat("All days are legal\n")
+ }
All days are legal
> 
> 
> 
> cleanEx(); ..nameEx <- "date.mmddyy"
> 
> ### * date.mmddyy
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: date.mmddyy
> ### Title: Format a Julian date
> ### Aliases: date.mmddyy
> ### Keywords: chron
> 
> ### ** Examples
> 
> date.mmddyy(as.date(10))
[1] "1/11/60"
> 
> 
> 
> cleanEx(); ..nameEx <- "date.mmddyyyy"
> 
> ### * date.mmddyyyy
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: date.mmddyyyy
> ### Title: Format a Julian date
> ### Aliases: date.mmddyyyy
> ### Keywords: chron
> 
> ### ** Examples
> 
> date.mmddyyyy(as.date(1:10))
 [1] "1/2/1960"  "1/3/1960"  "1/4/1960"  "1/5/1960"  "1/6/1960"  "1/7/1960" 
 [7] "1/8/1960"  "1/9/1960"  "1/10/1960" "1/11/1960"
> 
> 
> 
> cleanEx(); ..nameEx <- "mdy.date"
> 
> ### * mdy.date
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: mdy.date
> ### Title: Convert to Julian Dates
> ### Aliases: mdy.date
> ### Keywords: chron
> 
> ### ** Examples
> 
> mdy.date(3, 10, 53)
[1] 10Mar53
> xzt <-1:10
> xzy <- as.date(xzt)
> test <- data.frame(x = xzt, date = xzy)
> summary(test)
       x             date        
 Min.   : 1.00   First :2Jan60   
 1st Qu.: 3.25   Last  :11Jan60  
 Median : 5.50                   
 Mean   : 5.50                   
 3rd Qu.: 7.75                   
 Max.   :10.00                   
> 
> 
> 
> ### * <FOOTER>
> ###
> cat("Time elapsed: ", proc.time() - get("ptime", env = .CheckExEnv),"\n")
Time elapsed:  0.12 0 0.12 0 0 
> grDevices::dev.off()
null device 
          1 
> ###
> ### Local variables: ***
> ### mode: outline-minor ***
> ### outline-regexp: "\\(> \\)?### [*]+" ***
> ### End: ***
> quit('no')