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lx-88/superscript in R ggplot2 axis label.R

Created September 8, 2015 05:50
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Include a superscript in a ggplot2 axis label. Useful for a unit...
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superscript in R ggplot2 axis label.R
# use expression
# within expression, ~ represents a space
chanDensity_plot <- ggplot(data=chan_density_df, aes(x=site, y=density)) +
geom_bar(stat='identity') +
labs(x="Site", y=expression(Channel~Density~(km/km^2)), title='LIDAR-derived channel density')
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