Custom x-axis ticks values in ggplot2 facet_wrap

Asked Jan 03 '17 at 13:22

Active Jan 03 '17 at 13:46

Viewed 1,079 times

I want to change the group labels in a facet plot in ggplot2. This code

data = tidyr::gather(data = iris, variable, value, -Species)

ggplot(data, aes(y = value, x = variable, fill = Species)) +
  geom_boxplot(position = "dodge", notch = TRUE) +
  ylab("median(x)") +
  facet_wrap(~variable, scales = "free", ncol = 2)

produces

I want the x-axis tick labels to represent each Species name instead of the variable the respective sub-plot is being grouped by (which is also repeating whats already in the sub-plots title). Any idea on how I can achieve that? I've been searching the web all over but could not find any valuable information on that.

best regards, Andi

Update

Henrik gave the right answer, I'd have to change the proper aes feature. Thanks!

edited Jan 03 '17 at 13:46

asked Jan 03 '17 at 13:22

A. Neumann

4

Replace `x = variable` with `x = Species` in your `aes`? – Henrik Jan 03 '17 at 13:27
Thanks, looks as if I have to recap ggplots grammar! – A. Neumann Jan 03 '17 at 13:36
there is also an argument called `labeller` in `facet_wrap`... don't know if it can be used but might worth a look – Sotos Jan 03 '17 at 13:43

Custom x-axis ticks values in ggplot2 facet_wrap

0 Answers0