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Density Plots
Using Rio ( Figure 7-5 ):
$ < data/tips.csv Rio -ge 'g+geom_density(aes(tip / bill * 100, fill=sex), ' \
> 'alpha=0.3) + xlab("percent")' | display
Figure 7-5. Density plot
feedgnuplot cannot generate density plots, so it's best to just generate a histogram.
 
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