File:Piecharts.svg
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Piecharts.svg (SVG file, nominally 689 × 494 pixels, file size: 39 KB)
[edit] Summary
Example of a pie chart, along with a bar plot showing the same data and indicating that the pie chart is not the best possible chart for this particular dataset.
The graphic was created by User:Schutz for Wikipedia on 28 August 2007 using the R statistical project. The program that generated the graphic is given below. The graph was exported in postscript format, converted to SVG using the pstoedit command, and the layout was slightly modified using Inkscape before upload.
a <- matrix(c(17, 18, 20, 22, 23,
20, 20, 19, 21, 20,
23, 22, 20, 18, 17), nrow=3, byrow=T)
titles <- c("A", "B", "C")
cols <- c("red", "blue", "green", "yellow", "black")
postscript("piecharts.eps", paper="special", width=8, height=6)
defaultmar <- par("mar")
layout(matrix(c(1,3,5,
2,4,6), nrow=2, byrow=T), height=c(1,1))
par(cex=1)
par(font=1)
par(las=1)
par(font.axis=1)
par(mgp=c(1,1,0))
for (i in 1:nrow(a)) {
par(mar=c(0,0,2,0))
pie(a[i,], init=90, clockwise=T, col=cols, radius=0.8)
title(main=titles[i], line=0)
par(mar=defaultmar+c(-2,-1.5,-4,-0.5))
par(mgp=c(0,0.5,0))
barplot(a[i,], horiz=F, xlim=c(0,10), ylim=c(0,25), col=cols, border=0,
names.arg=1:5, space=0.8, axes=F)
par(mgp=c(0,1,0))
abline(h=5*1:5, col="white")
axis(2)
}
dev.off()
 |
This chart was created with R. |
[edit] Licensing
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:33, 28 August 2007 | | 689×494 (39 KB) | Schutz (talk | contribs) | (== Summary == Example of a pie chart, along with a bar plot showing the same data and indicating that the pie chart is not the best possible chart for this particular dataset. The graphic was created by User:Schutz for Wikipedia on 28 August 2007 usi) |
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File links
The following 2 pages link to this file:
Global file usage
The following other wikis use this file:
- Usage of Piecharts.svg on enwiki
- Usage of Piecharts.svg on zhwiki
