Menu
I have a data that I'm plotting on ggplot2 as boxplots which look like
> head(varf)
sID variable value
1 SP_SA036,SA040 CM0001 0.492537313
2 SP_SA036,SA040 CM0001 0.479564033
3 SP_SA036,SA040 CM0001 0.559139785
4 SP_SA036,SA040 CM0001 0.526806527
5 SP_SA036,SA040 CM0001 0.009049774
6 SP_SA036,SA040 CM0001 0.451612903
The variable column contains 16 different IDs (from CM0001 to CM0016)
I have a dataframe with annotation
category annotation
CM001 HG4450
CM002 HG3288
..
CM016 MM8998
I would like to map these annotations on top of my boxplots but couldn't find a way to do it, what is the right syntax of using geom_text with boxplot ?
Thanks
844
Firstly, to create boxplot we'll use the seaborn library, and to display text on the boxplot we will be using the text() method available inside the matplotlib. pyplot class. The text() method enables us to write strings on the plots and add customizations to them.
You can use the annotate() function to add text to plots in ggplot2. where: x, y: The (x, y) coordinates where the text should be placed. label: The text to display.
We can add labels using the xlab,ylab parameters in the boxplot() function. By using the main parameter, we can add heading to the plot. Notch parameter is used to make the plot more understandable.
In ggplot2, geom_boxplot() is used to create a boxplot.
There are many ways to approach this problem, e.g. here and here. Probably the simplest way is
meds <- c(by(mtcars$mpg, mtcars$cyl, median))
ggplot(mtcars, aes(factor(cyl), mpg)) +
geom_boxplot() +
geom_text(data=data.frame(), aes(x=names(meds), y=meds, label=1:3), col='red', size=10)
198
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
