ggplot - function for graph styling

Question

I recently created some graphs in R ggplot, everything works fine except my code that is bit messy since that for each graph im using this styling

theme(
    axis.text.x = element_text(size = 8),
    axis.text.y = element_text(size = 8),
    axis.title.x = element_blank(),
    axis.title.y = element_text(size = 11),
    legend.position = "bottom",
    legend.title = element_blank(),
    legend.text = element_text(size=9),
    legend.spacing.x = unit(0.25, 'cm'),
    axis.text.y.right = element_text(hjust = 0),
    plot.title = element_text(size = 15, hjust = 0.5)
  )

Is it possible to recreate this piece of code as function that I can apply for each graph?

Assign it to mytheme and do p + mytheme? I don't know why you need a function. — Roland
– Roland, Commented Jul 23, 2019 at 8:56

akis · Accepted Answer · 2019-07-23 09:36:48Z

0

I think that you can only use it as a theme() and paste it in every graph you want.

answered Jul 23, 2019 at 9:36

akis

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3 Comments

user4394417 Over a year ago

well a thought the same but i can't

akis Over a year ago

@ZcelaAnonymní What do you mean, you can't? Is it that you must make it into a function, or you don't want to use it as in theme ?

MrGumble Over a year ago

This is directly false; theme() always returns a list of its arguments, which can be appended to any ggplot2 or theme object.

Haezer · Accepted Answer · 2019-07-23 10:07:31Z

0

You can simply do :

my_theme <- function(){
  theme(
    axis.text.x = element_text(size = 8),
    axis.text.y = element_text(size = 8),
    axis.title.x = element_blank(),
    axis.title.y = element_text(size = 11),
    legend.position = "bottom",
    legend.title = element_blank(),
    legend.text = element_text(size=9),
    legend.spacing.x = unit(0.25, 'cm'),
    axis.text.y.right = element_text(hjust = 0),
    plot.title = element_text(size = 15, hjust = 0.5)
  ) 
}

and then, given a plot p you just have to do

p + my_theme()

answered Jul 23, 2019 at 10:07

Haezer

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2 Comments

MrGumble Over a year ago

You don't even have to create it as a function. You can directly assign mytheme <- theme(...) and then add that to your ggplot2 plot.

Haezer Over a year ago

Sure, but author is asking for a function, I'm giving a function.He may have some implicit reasons for wanting specificly a function.

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