Labeling barplot bars by multiple factors

You can get something close with ggplot2:

library(ggplot2)
my_data = expand.grid(
	A = factor(c('A1','A2'))
	, B = factor(c('B1','B2'))
	, C = factor(c('C1','C2'))
)
my_data$DV = rnorm(8,mean=10,sd=1)
p = ggplot()
p = p + layer(
	geom = 'bar'
	, stat = 'identity'
	, data = my_data
	, mapping = aes(
		x = C
		, y = DV
		, fill = B
	)
	, position = 'dodge'
)
p = p + facet_grid(
	A ~ .
)
p = p + coord_flip()
print(p)

I want to plot quantitative data as a function of three two-level factors.
How do I group the bars on a barplot by level through labeling and spacing?
Here <http://www.thomaslevine.org/sample_multiple-factor_barplot.png>'s what
I'm thinking of. Also, I'm pretty sure that I want a barplot, but there may
be something better.

Tom

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I want to plot quantitative data as a function of three two-level factors.
How do I group the bars on a barplot by level through labeling and spacing?
Here <http://www.thomaslevine.org/sample_multiple-factor_barplot.png>'s what
I'm thinking of. Also, I'm pretty sure that I want a barplot, but there may
be something better.

  

Hi Tom,
You may find that the hierobarp function in the plotrix package will do 
what you want.

Jim

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