I am having an issue with faceting a dataset looking at different medical devices over a certain time point. The figure I am looking to do uses a facet_wrap
with two variables (I know I could also use facet_grid
but prefer the appearance of facet_wrap
in this case)
The issue I have is: 1.) The orientation of the strip labels, where I would like the top strip to be below the other one and 2) that I would like the bottom strip label to cross both columns as it is the same.
An example dataset and code is below:
library(tidyverse)
library(ggplot2)
dt <- tibble(device_type = c("Stent","Stent","Stent","Stent", "Pace","Pace","Pace","Pace"),
days = c(5,10,15,2,4,6,6,8),
generation = c("First", "Second","First", "Second","First", "Second","First", "Second"),
year = c("Before", "Before","After", "After","Before", "Before","After", "After"))
dt %>%
ggplot(aes(x=generation, y= days))
geom_bar(stat = "identity")
facet_wrap(~device_type year, strip.position = "bottom", nrow = 1)
theme(strip.placement = "outside")
What I am trying to get the orientation of the facet strip labels to look like is here:
I first tried changing the position of the variables in the facet_wrap line to facet_wrap(~year device_type, strip.position = "bottom", nrow = 1)
but this alters the plot in such a way that it splits the grouping into years which is not ideal for the actual dataset im using this on.