Setting default x axis breaks and title using ggplot

Question

I am trying to find a way to set the default x axis breaks at 0, 20, 40, 60, 80 when plotting using ggplot, and automatically name the x axis time [days], without having to specify this in every single plot.

is this possible, and how would it be possible?

i have tried running this in the beginning of my script, but it resulted in an error due to infinite recursion:

scale_x_continuous<- function(...) {
  scale_x_continuous(..., name = "time [days]", breaks = c(0, 20, 40, 60, 80))
}

stefan · Accepted Answer · 2024-02-06 11:30:32Z

0

One option would be to name your custom function different from scale_x_continuous:

library(ggplot2)

scale_x_continuous1 <- function(...) {
  scale_x_continuous(..., name = "time [days]", breaks = c(0, 20, 40, 60, 80))
}

ggplot(mtcars, aes(hp, mpg)) +
  geom_point() +
  scale_x_continuous1()

answered Feb 6, 2024 at 11:30

stefan

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2 Comments

user21389585 Over a year ago

thank you, but let me clarify: is it possible to do this, without having to create a new scale_x_continuous1 function, but by just changing the default for the original scale_x_continuous call?

stefan Over a year ago

Personally I'm not a of overwriting an existing function but of course could you do

scale_x_continuous <- function(...) { ggplot2::scale_x_continuous(..., name = "time [days]", breaks = c(0, 20, 40, 60, 80)) }

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