Image:Michelsonmorley-boxplot.svg

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Michelsonmorley-boxplot.svg‎ (720 × 720 pixel, file size: 19 KB, MIME type: image/svg+xml)

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[edit] Summary

Boxplot representing Michelson and Morley's data on the speed of light. It consists of five experiments, each made of 20 consecutive runs.

This image is similar to Image:R-speed of light boxplot.png, but is stored in vectorial format instead of bitmap.

Note that the oblique line is incorrect, and probably due to a bug in the Mediawiki software/SVG converter.

The graphic was created by User:Schutz for Wikipedia on 28 December 2006, using the R statistical project. The program that generated the graphic is given below; the data and the idea are from the R help page for the morley dataset (see help(morley)). The graph was exported in postscript format, converted to SVG using the pstoedit command, and the layout was slightly modified using Inkscape before upload.

 
  data(morley)
  morley$Expt <- factor(morley$Expt)
  morley$Run <- factor(morley$Run)
  attach(morley)

  postscript("Michelsonmorley-boxplot.ps", paper="special", height=6, width=6,
             horizontal=F)
  par(las=1)
  par(mar=c(5.1, 5.1, 2.1, 2.1))
  par(font=2)
  par(font.axis=2)
  boxplot(Speed ~ Expt, xlab = "Experiment No.", ylab="Speed of light (km/s minus 299,000)")
  abline(h=792.458, lty=3)
  dev.off()

[edit] Licence

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.

The creator and uploader also believes that this graphic is a trivial work which does not qualifies for copyright.

This chart was created with R.

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The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

Retrieved from "http://en.wikipedia.org../../../m/i/c/Image%7EMichelsonmorley-boxplot.svg_3589.html"

Image:Michelsonmorley-boxplot.svg

From Wikipedia, the free encyclopedia

[edit] Summary

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