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# Basic boxplot
with(michelson, boxplot(Speed ~ Expt))
# I can add colour and labels. I can also save
the results to an object.
michelson.bp = with(michelson, boxplot(Speed
~ Expt, xlab="Experiment", las=1,
ylab="Speed of Light - 299,000 m/s",
main="Michelson-Morley Experiments",
col="slateblue1"))
# The current estimate of the speed of light,
on this scale, is 734.5
# Add a horizontal line to highlight this value.
abline(h=734.5, lwd=2,col="purple")
#Add modern speed of light |
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MyExample = function(){ library(MASS) data(michelson) michelson.bw = with(michelson, boxplot(Speed ~ Expt, xlab="Experiment", las=1, ylab="Speed of Light - 299,000 m/s", main="Michelsen-Morley Experiments", col="slateblue1")) abline(h=734.5, lwd=2,col="purple")
} |
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