Image:Piechart.svg

[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 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.

 
  a <- c(17, 18, 20, 22, 23)
  cols <- c("red", "blue", "green", "yellow", "black")
  
  postscript("piechart.eps", paper="special", width=8, height=4)
  par(mfrow=c(1,2))
  par(cex=1.2)
  par(font=2)
  defaultmar <- par("mar")
  par(mar=c(0,0,0,0))  # Margins
  par(las=1)           # Axis labels always horizontal
  par(font.axis=2)
  pie(a, init=90, clockwise=T, col=cols)
  par(mar=defaultmar-c(1.7,2,2.5,1))
  barplot(rev(a), horiz=T, xlim=c(0,25), col=rev(cols), border=0, names.arg=5:1, space=0.8)
  dev.off()
  

This chart was created with R.

[edit] Licensing

I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide. In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. Afrikaans | Alemannisch | Aragonés | العربية | Asturianu | Български | Català | Česky | Cymraeg | Dansk | Deutsch | Eʋegbe | Ελληνικά | English | Español | Esperanto | Euskara | Estremeñu | فارسی | Français | Galego | 한국어 | हिन्दी | Hrvatski | Ido | Bahasa Indonesia | Íslenska | Italiano | עברית | Kurdî / كوردی | Latina | Lietuvių | Latviešu | Magyar | Македонски | Bahasa Melayu | Nederlands | ‪Norsk (bokmål)‬ | ‪Norsk (nynorsk)‬ | 日本語 | Polski | Português | Ripoarisch | Română | Русский | Shqip | Slovenčina | Slovenščina | Српски / Srpski | Svenska | ไทย | Tagalog | Türkçe | Українська | Tiếng Việt | Walon | ‪中文(简体)‬ | ‪中文(繁體)‬ | zh-yue-hant | +/-