Hi,
I have the follow ggplot2 code I am running:
ggplot(data=bb.res.math,aes(x=factor(id.bb),y=bb.math.comb,fill=BB)) +
geom_bar() + facet_grid(BB~.) + scale_fill_brewer(pal="Set1") + ylab("Average
Student Residual (Math)") + xlab("Student ID")
The number of unique id.bb is 2207 and so my X-axis has a couple of thousands,
indistinguishable tick marks that correspond to each id. I am wondering if
there is a way to suppress these tick marks?
Here is some test data:
> test
id.bb bb.res.m bb.math.comb BB
1 2900 1 -3.0032235 BB
2 2904 1 -1.8758770 BB
3 3469 1 0.8182852 BB
4 4213 1 -2.0660215 Not BB
5 4215 1 -4.8622086 BB
6 4395 1 0.8873996 Not BB
> ggplot(data=test,aes(x=factor(id.bb),y=bb.math.comb,fill=BB)) + geom_bar() +
> facet_grid(BB~.) + scale_fill_brewer(pal="Set1") + ylab("Average Student
> Residual (Math)") + xlab("Student ID")
Gives the following graph:
http://dl.dropbox.com/u/1501309/ggplot2_suppress_ids.pdf
I'd like to prevent "2900", "2904", "3469", etc. from showing up on the X-axis.
Thanks,
Chris
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