Creating ‘aardvark.R’
  Running ‘demo-graphics.R’ [3s/12s]
Running the tests in ‘tests/demo-graphics.R’ failed.
Complete output:
  > require(datasets)
  > require(grDevices); require(graphics)
  > 
  > library(gridGraphics)
  Loading required package: grid
  > 
  > demo1 <- function() {
  +     x <- stats::rnorm(50)
  +     par(bg = "white")
  +     plot(x, ann = FALSE, type = "n")
  +     abline(h = 0, col = gray(.90))
  +     lines(x, col = "green4", lty = "dotted")
  +     points(x, bg = "limegreen", pch = 21)
  +     title(main = "Simple Use of Color In a Plot",
  +           xlab = "Just a Whisper of a Label",
  +           col.main = "blue", col.lab = gray(.8),
  +           cex.main = 1.2, cex.lab = 1.0, font.main = 4, font.lab = 3)
  + }
  > 
  > demo2 <- function() {
  +     par(bg = "gray")
  +     pie(rep(1,24), col = rainbow(24), radius = 0.9)
  +     title(main = "A Sample Color Wheel", cex.main = 1.4, font.main = 3)
  +     title(xlab = "(Use this as a test of monitor linearity)",
  +           cex.lab = 0.8, font.lab = 3)
  + }
  > 
  > demo3 <- function() {
  +     pie.sales <- c(0.12, 0.3, 0.26, 0.16, 0.04, 0.12)
  +     names(pie.sales) <- c("Blueberry", "Cherry",
  +                           "Apple", "Boston Cream", "Other", "Vanilla Cream")
  +     pie(pie.sales,
  +         col = c("purple","violetred1","green3","cornsilk","cyan","white"))
  +     title(main = "January Pie Sales", cex.main = 1.8, font.main = 1)
  +     title(xlab = "(Don't try this at home kids)", cex.lab = 0.8, font.lab = 3)
  + }
  > 
  > demo4 <- function() {
  +     par(bg="cornsilk")
  +     n <- 10
  +     g <- gl(n, 100, n*100)
  +     x <- rnorm(n*100) + sqrt(as.numeric(g))
  +     boxplot(split(x,g), col="lavender", notch=TRUE)
  +     title(main="Notched Boxplots", xlab="Group", font.main=4, font.lab=1)
  + }
  > 
  > demo5 <- function() {
  +     par(bg="white")
  +     n <- 100
  +     x <- c(0,cumsum(rnorm(n)))
  +     y <- c(0,cumsum(rnorm(n)))
  +     xx <- c(0:n, n:0)
  +     yy <- c(x, rev(y))
  +     plot(xx, yy, type="n", xlab="Time", ylab="Distance")
  +     polygon(xx, yy, col="gray")
  +     title("Distance Between Brownian Motions")
  + }
  > 
  > demo6 <- function() {
  +     x <- c(0.00, 0.40, 0.86, 0.85, 0.69, 0.48, 0.54, 1.09, 1.11, 1.73, 2.05, 2.02)
  +     par(bg="lightgray")
  +     plot(x, type="n", axes=FALSE, ann=FALSE)
  +     usr <- par("usr")
  +     rect(usr[1], usr[3], usr[2], usr[4], col="cornsilk", border="black")
  +     lines(x, col="blue")
  +     points(x, pch=21, bg="lightcyan", cex=1.25)
  +     axis(2, col.axis="blue", las=1)
  +     axis(1, at=1:12, lab=month.abb, col.axis="blue")
  +     box()
  +     title(main= "The Level of Interest in R", font.main=4, col.main="red")
  +     title(xlab= "1996", col.lab="red")
  + }
  > 
  > demo7 <- function() {
  +     par(bg="cornsilk")
  +     set.seed(1)
  +     x <- rnorm(1000)
  +     hist(x, xlim=range(-4, 4, x), col="lavender", main="")
  +     title(main="1000 Normal Random Variates", font.main=3)
  + }
  > 
  > demo8 <- function() {
  +     pairs(iris[1:4], main="Edgar Anderson's Iris Data", font.main=4, pch=19)
  + }
  > 
  > demo9 <- function() {
  +     pairs(iris[1:4], main="Edgar Anderson's Iris Data", pch=21,
  +           bg = c("red", "green3", "blue")[unclass(iris$Species)])
  + }
  > 
  > demo10 <- function() {
  +     x <- 10*1:nrow(volcano)
  +     y <- 10*1:ncol(volcano)
  +     lev <- pretty(range(volcano), 10)
  +     par(bg = "lightcyan")
  +     pin <- par("pin")
  +     xdelta <- diff(range(x))
  +     ydelta <- diff(range(y))
  +     xscale <- pin[1]/xdelta
  +     yscale <- pin[2]/ydelta
  +     scale <- min(xscale, yscale)
  +     xadd <- 0.5*(pin[1]/scale - xdelta)
  +     yadd <- 0.5*(pin[2]/scale - ydelta)
  +     plot(numeric(0), numeric(0),
  +          xlim = range(x)+c(-1,1)*xadd, ylim = range(y)+c(-1,1)*yadd,
  +          type = "n", ann = FALSE)
  +     usr <- par("usr")
  +     rect(usr[1], usr[3], usr[2], usr[4], col="green3")
  +     clines <- contourLines(x, y, volcano, levels = lev)
  +     lapply(clines, lines, col="yellow", lty="solid")
  +     box()
  +     title("A Topographic Map of Maunga Whau", font= 4)
  +     title(xlab = "Meters North", ylab = "Meters West", font= 3)
  +     mtext("10 Meter Contour Spacing", side=3, line=0.35, outer=FALSE,
  +           at = mean(par("usr")[1:2]), cex=0.7, font=3)
  + }
  > 
  > demo11 <- function() {
  +     par(bg="cornsilk")
  +     coplot(lat ~ long | depth, data = quakes, pch = 21, bg = "green3")
  + }
  > 
  > plotdiff(expression(demo1()), "demo-1")
  Error in if (result == "0") { : argument is of length zero
  Calls: plotdiff -> plotcompare
  Execution halted