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Original file(SVG file, nominally 703 × 321 pixels, file size: 13 KB)

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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 27 December 2006, using the R statistical project. The program that generated the graphic is given below; the data and the idea are from w:Image:PieCompare.png by w:User:Chrispounds. The graph was exported in postscript format, converted to SVG using the pstoedit command, and the layout was slightly modified using Inkscape before upload.

R logo.svg
This chart was created with R+pstoedit+Inkscape:

R code

a <- c(13, 14, 30,43)
  cols <- c(
"blue", "green", "yellow", "black")
  postscript("piechart.eps", paper="special", width=8, height=4)
  defaultmar <- par("mar")
  par(mar=c(0,0,0,0))  # Margins
  par(las=1)           # Axis labels always horizontal
  pie(a, init=90, clockwise=T, col=cols)
  barplot(rev(a), horiz=T, xlim=c(0,25), col=rev(cols), border=0, names.arg=5:1, space=0.8)


Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

File history

Click on a date/time to view the file as it appeared at that time.

current11:39, 1 January 2007Thumbnail for version as of 11:39, 1 January 2007703 × 321 (13 KB)Schutz
01:32, 27 December 2006Thumbnail for version as of 01:32, 27 December 2006680 × 320 (15 KB)Schutz
01:26, 27 December 2006Thumbnail for version as of 01:26, 27 December 2006663 × 293 (15 KB)Schutz
01:06, 27 December 2006Thumbnail for version as of 01:06, 27 December 2006579 × 282 (14 KB)Schutz
00:53, 27 December 2006Thumbnail for version as of 00:53, 27 December 2006670 × 300 (15 KB)SchutzExample of a pie chart

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