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("Oarray-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('Oarray')

Attaching package: 'Oarray'


	The following object(s) are masked from package:base :

	 as.array 

> 
> assign(".oldSearch", search(), env = .CheckExEnv)
> assign(".oldNS", loadedNamespaces(), env = .CheckExEnv)
> cleanEx(); ..nameEx <- "Oarray"
> 
> ### * Oarray
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: Oarray
> ### Title: Arrays with arbitrary offsets
> ### Aliases: Oarray as.Oarray as.array.default as.array as.array.Oarray
> ###   is.Oarray .handleTheOffset [.Oarray [<-.Oarray print.Oarray
> ### Keywords: array
> 
> ### ** Examples
> 
> fred <- Oarray(1:24, 2:4, list(c("sad", "happy"), NULL, NULL),
+   offset=rep(7, 3))
> 
> tmp <- as.array(fred)
> fred1 <- as.Oarray(tmp, offset=rep(7, 3))
> stopifnot(identical(fred, fred1))
> 
> print.default(fred)  # print method provides numbers for
, , 1

      [,1] [,2] [,3]
sad      1    3    5
happy    2    4    6

, , 2

      [,1] [,2] [,3]
sad      7    9   11
happy    8   10   12

, , 3

      [,1] [,2] [,3]
sad     13   15   17
happy   14   16   18

, , 4

      [,1] [,2] [,3]
sad     19   21   23
happy   20   22   24

attr(,"offset")
[1] 7 7 7
attr(,"drop.negative")
[1] TRUE
attr(,"class")
[1] "Oarray"
> fred                 # non-named extents
, , 7

      [,7] [,8] [,9]
sad      1    3    5
happy    2    4    6

, , 8

      [,7] [,8] [,9]
sad      7    9   11
happy    8   10   12

, , 9

      [,7] [,8] [,9]
sad     13   15   17
happy   14   16   18

, , 10

      [,7] [,8] [,9]
sad     19   21   23
happy   20   22   24

> 
> # examples of extraction
> 
> fred[] # unclasses fred
, , 1

      [,1] [,2] [,3]
sad      1    3    5
happy    2    4    6

, , 2

      [,1] [,2] [,3]
sad      7    9   11
happy    8   10   12

, , 3

      [,1] [,2] [,3]
sad     13   15   17
happy   14   16   18

, , 4

      [,1] [,2] [,3]
sad     19   21   23
happy   20   22   24

> fred["sad", 7, -9]
[1]  1  7 19
> fred["sad", 7, -9, drop=FALSE]
, , 1

    [,1]
sad    1

, , 2

    [,1]
sad    7

, , 3

    [,1]
sad   19

> fred[-8, , 7:8]
     [,1] [,2]
[1,]    1    7
[2,]    3    9
[3,]    5   11
> 
> i <- 8:9; fred[, , i+1]
, , 1

      [,1] [,2] [,3]
sad     13   15   17
happy   14   16   18

, , 2

      [,1] [,2] [,3]
sad     19   21   23
happy   20   22   24

> how.I.feel <- "happy"; fred[how.I.feel, , -(7:8)]
     [,1] [,2]
[1,]   14   20
[2,]   16   22
[3,]   18   24
> 
> # examples of assignment
> 
> fred["sad", 7, -9] <- NA
> fred[, , i] <- 100
> fred[how.I.feel, , -(7:8)] <- Inf
> 
> # now use negative offsets and suppress usual behaviour
> 
> fred <- Oarray(24:1, 2:4, offset=c(-1, -2, 7), drop.negative=FALSE)
> fred[] <- 1:24
> fred[-(1:0), , 7:8]
, , 1

     [,1] [,2] [,3]
[1,]    1    3    5
[2,]    2    4    6

, , 2

     [,1] [,2] [,3]
[1,]    7    9   11
[2,]    8   10   12

> fred[-(1:0), , 7:8] <- 100
> dimnames(fred) <- list(c("sad", "happy"), NULL, NULL)
> fred["sad", -2, 10] <- NA
> 
> 
> 
> ### * <FOOTER>
> ###
> cat("Time elapsed: ", proc.time() - get("ptime", env = .CheckExEnv),"\n")
Time elapsed:  0.08 0 0.07 0 0 
> grDevices::dev.off()
null device 
          1 
> ###
> ### Local variables: ***
> ### mode: outline-minor ***
> ### outline-regexp: "\\(> \\)?### [*]+" ***
> ### End: ***
> quit('no')