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pd |
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ripley |
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R : Copyright 2005, The R Foundation for Statistical Computing
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maechler |
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Version 2.1.0 Under development (unstable) (2005-02-26), ISBN 3-900051-07-0
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pd |
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R is free software and comes with ABSOLUTELY NO WARRANTY.
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You are welcome to redistribute it under certain conditions.
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maechler |
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Type 'license()' or 'licence()' for distribution details.
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pd |
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R is a collaborative project with many contributors.
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maechler |
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Type 'contributors()' for more information and
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ripley |
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'citation()' on how to cite R or R packages in publications.
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pd |
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maechler |
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Type 'demo()' for some demos, 'help()' for on-line help, or
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'help.start()' for a HTML browser interface to help.
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Type 'q()' to quit R.
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pd |
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> #### Regression tests for GRAPHICS & PLOTS
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>
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ripley |
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> postscript("reg-plot.ps", paper="a4", horizontal=TRUE,
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+ encoding ="ISOLatin1.enc")
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ripley |
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> ## since we supply the font metrics, the results depend only on
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ripley |
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> ## the encoding used: Windows is different from Unix by default.
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ripley |
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> ## As from 2.1.0 we only test genuine Latin-1 chars: Adobe has dotlessi
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> ## and accents at 144:152, 154, 155, 157:159, but Unicode does not.
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pd |
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>
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> options(warn = 1)# print them as they occur
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>
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> plot(0) # this should remain constant
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> str(par(c("usr","xaxp","yaxp")))
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List of 3
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$ usr : num [1:4] 0.568 1.432 -1.080 1.080
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$ xaxp: num [1:3] 0.6 1.4 4.0
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$ yaxp: num [1:3] -1 1 4
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>
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>
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>
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> ### Test for centring of chars. All the chars which are plotted should
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> ### be centred, and there should be no warnings about
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> ### font metrics unknown for character `?'
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>
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> par(pty="s")
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ripley |
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> plot(c(-1,16), c(-1,16), type="n", xlab="", ylab="", xaxs="i", yaxs="i")
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pd |
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> title("Centred chars in default char set (ISO Latin1)")
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ripley |
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> grid(17, 17, lty=1)
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ripley |
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> known <- c(32:126, 160:255)
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ripley |
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>
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> for(i in known) {
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pd |
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+ x <- i %% 16
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+ y <- i %/% 16
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+ points(x, y, pch=i)
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+ }
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>
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> par(pty="m")
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>
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pd |
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> ## PR 816 (label sizes in dotchart)
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pd |
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>
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> ### Prior to 1.2.2, the label sizes were unaffected by cex.
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>
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pd |
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> dotchart(VADeaths, main = "Death Rates in Virginia - 1940", cex = 0.5)
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> dotchart(VADeaths, main = "Death Rates in Virginia - 1940", cex = 1.5)
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pd |
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>
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ripley |
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> ## killed by 0 prior to 1.4.0 and in 1.4.1:
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> t1 <- ts(0:100)
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> ## only warnings about values <= 0
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> plot(t1, log = "y")
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ripley |
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Warning in xy.coords(x, NULL, log = log) : 1 y value <= 0 omitted from logarithmic plot
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ripley |
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> plot(cbind(t1, 10*t1, t1 - 4), log="y", plot.type = "single")
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ripley |
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Warning in xy.coords(x = matrix(rep.int(tx, k), ncol = k), y = x, log = log) :
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ripley |
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7 y values <= 0 omitted from logarithmic plot
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> stopifnot(par("usr")[4] > 3) # log10: ylim[2] = 1000
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>
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ripley |
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>
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> ## This one needs to be looked at.
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> ## lty = "blank" killed the fill colour too.
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> plot(1:10, type="n")
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> polygon(c(1, 3, 3, 1), c(1, 1, 3, 3), col="yellow", border="red", lty="blank")
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> rect(6, 6, 10, 10, col="blue", border="red", lty="blank")
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> ## in 1.5.0 all omit the fill colours.
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> with(trees, symbols(Height, Volume, circles=Girth/24, inches=FALSE,
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+ lty="blank", bg="blue"))
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> ## in 1.5.0 ignored the lty.
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>
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ripley |
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> ## axis() and par(mgp < 0) {keep this example S+ compatible!}:
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maechler |
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> lt <- if(is.R()) "31" else 2
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ripley |
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> x <- seq(-2,3, len=1001)
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> op <- par(tck= +0.02, mgp = -c(3,2,0))
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> plot(x, x^2 - 1.2, xaxt = "n", xlab="", type ='l', col = 2,
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+ main = "mgp < 0: all ticks and labels inside `frame'")
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> x <- -2:3
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> lines(x, x^2 - 1.2, type ="h", col = 3, lwd=3)
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maechler |
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> axis(1, pos = 0, at=-1:1, lty = lt, col=4)## col & lty work only from R 1.6
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ripley |
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> par(op)
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maechler |
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> axis(1, pos = 0, at=c(-2,2,3), lty = lt, col=4)
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ripley |
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> mtext(side=1,"note the x-ticks on the other side of the bars")
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ripley |
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>
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maechler |
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> ## plot.table(): explicit xlab and ylab for non-1D
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ripley |
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> plot(UCBAdmissions)# default x- and y-lab
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> plot(UCBAdmissions, xlab = "x label", ylab = "YY")# wrong in 1.5.1
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maechler |
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> ## axis suppression
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> plot(tt <- table(c(rep(0,7), rep(1,4), rep(5, 3))), axes = FALSE)
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> plot(tt, xaxt = "n")
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> ## wrong till (incl.) 1.6.x
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ripley |
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>
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maechler |
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> ## legend with call
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> lo <- legend(2,2, substitute(hat(theta) == that, list(that= pi)))
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> stopifnot(length(lo$text$x) == 1)
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> ## length() was 3 till 1.7.x
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>
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maechler |
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> plot(ecdf(c(1:4,8,12)), ylab = "ECDF", main=NULL)
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> ## ylab didn't work till 1.8.0
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>
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maechler |
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> plot(1:10, pch = NA) # gave error till 1.9.0
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> points(1:3, pch=c("o",NA,"x"))# used "N"
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> try(points(4, pch=c(NA,FALSE)))# still give an error
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Error in plot.xy(xy.coords(x, y), type = type, pch = pch, col = col, bg = bg, :
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only NA allowed in logical plotting symbol
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>
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maechler |
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> ## 'lwd' should transfer to plot symbols
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> legend(1,10, c("A","bcd"), lwd = 2:3, pch= 21:22, pt.bg="skyblue",
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+ col = 2:3, bg = "thistle")
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> ## (gave an error for 2 days in "2.0.0 unstable")
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>
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maechler |
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> x <- 2^seq(1,1001, length=20)
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> plot(x, x^0.9, type="l", log="xy")
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> ## gave error 'Infinite axis extents [GEPretty(1.87013e-12,inf,5)]' for R 2.0.1
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>
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