I have a dataset of scores (from 0 to 100) on different dimensions (A,B,C,D). Using the following code:
dat=stack(dat)
dat$ind <- factor(dat$ind,levels=rev(unique(dat$ind)))
ggplot(dat, aes(values,ind)) +
geom_boxplot() +
xlab("Dimension Score") +
ylab ("Dimension")
I create a plot that looks like this:
Now I need to highlight specific ranges for each of the dimensions:
A: 45 to 60
B: 70 to 85
C: 40 to 55
D: 35 to 50
How do I do this? Thank you in advance for your help.
Use geom_rect, e.g. below. ymin and ymax of factor correspond to their mapping to integers. This should get you started.
library(ggplot2)
values <- c(
runif(100,0,100),
rgamma(100,10,1),
rnorm(100,50,30),
rnorm(100,70,10)
)
ind <- rep(c("A","B","C","D"),each = 100)
dat <- data.frame(values,ind)
rects <- data.frame(
start = c(45,70,40,35),
end = c(60,85,55,50),
ymin = c(0.5,1.5,2.5,3.5),
ymax = c(1.5,2.5,3.5,4.5),
group = as.factor(c("A","B","C","D"))
)
dat$ind <- factor(dat$ind,levels=rev(unique(dat$ind)))
ggplot(data = dat) +
geom_boxplot(mapping = aes(values,ind)) +
xlab("Dimension Score") +
ylab ("Dimension") +
geom_rect(data=rects, inherit.aes=FALSE, aes(xmin=start,
xmax=end,
ymin=ymin,
ymax=ymax,
group=group,
fill=group),
color="transparent", , alpha=0.3)
Cheers