Use the ggplot2 package in order to make a volcano plot! Check out the
following book for more information about the package: ggplot2: Elegant
Graphics for Data Analysis (Use R) by Hadley Wickham. ggplot2 is great for
creating professional graphics in no time.
If you look up stat_density in R, you will find the following example at the
bottom of the page:
# Make a volcano plot
ggplot(diamonds, aes(x = price)) +
stat_density(aes(ymax = ..density.., ymin = -..density..),
fill = "grey50", colour = "grey50",
geom = "ribbon", position = "identity") +
facet_grid(. ~ cut) +
coord_flip()
Good luck!
Anna
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