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I have a dataframe df.all and I'm plotting it in a bar plot with ggplot2 using the code below. I'd like to make it so that the order of the dodged bars is flipped. That is, so that the bars labeled "Singular" come before the bars labeled "Plural".
ggplot(df.all, aes(gram, V1, fill=number)) +
geom_bar(stat="identity", position="dodge") +
scale_x_discrete(labels=c("Grammatical","Ungrammatical")) +
scale_y_continuous(formatter="percent", limits=c(0,1)) +
facet_grid(. ~ experiment) +
scale_fill_hue("Attractor", breaks=c("S","P"), labels=c("Singular","Plural"))
I've tried doing levels(df.all$number) = c("S", "P") thinking that maybe ggplot uses the order of the levels to decide plotting order, but that didn't work. I'm not sure what else to try. Any ideas?
The contents of df.all, in case it's useful:
> df.all
number gram experiment V1
1 S G BERIMBAU_AGR_A 0.8133333
2 S G BERIMBAU_AGR_B 0.8658537
3 S U BERIMBAU_AGR_A 0.5436242
4 S U BERIMBAU_AGR_B 0.4597701
5 P G BERIMBAU_AGR_A 0.8580645
6 P G BERIMBAU_AGR_B 0.8536585
7 P U BERIMBAU_AGR_A 0.3087248
8 P U BERIMBAU_AGR_B 0.3975904
> str(df.all)
'data.frame': 8 obs. of 4 variables:
$ number : Factor w/ 2 levels "S","P": 2 2 2 2 1 1 1 1
..- attr(*, "scores")= num [1:2(1d)] 0 -1
.. ..- attr(*, "dimnames")=List of 1
.. .. ..$ : chr "P" "S"
$ gram : Factor w/ 2 levels "G","U": 1 1 2 2 1 1 2 2
$ experiment: Factor w/ 4 levels "BERIMBAU_AGR_A",..: 1 4 1 4 1 4 1 4
$ V1 : num 0.813 0.866 0.544 0.46 0.858 ...