Create ggplot2 graph with darker axes labels, lines and titles in R

To create a ggplot2 graph with darker axes labels, darker lines, and dark titles, we can use theme_classic function of ggplot2 package with base_size argument set to a larger value.

For Example, if we have a data frame called df that contains two columns say x and y then we can create the scatterplot between x and y using ggplot2 with darker axes labels, darker lines, and dark titles by using the below command −

ggplot(df,aes(x,y))+geom_point()+theme_classic(base_size=22)

Example

Following snippet creates a sample data frame −

x<-rpois(20,5) y<-rpois(20,2) df<-data.frame(x,y) df

The following dataframe is created

 x y 1 9 4 2 2 1 3 4 4 4 7 0 5 7 0 6 3 1 7 3 1 8 3 1 9 3 0 10 6 1 11 5 1 12 6 4 13 6 1 14 4 1 15 7 1 16 3 3 17 0 3 18 4 4 19 4 2 20 3 1

To load ggplot2 package and create scatterplot between x and y on the above created data frame, add the following code to the above snippet −

x<-rpois(20,5) y<-rpois(20,2) df<-data.frame(x,y) library(ggplot2) ggplot(df,aes(x,y))+geom_point()

Output

If you execute all the above given snippets as a single program, it generates the following Output −

To create scatterplot between x and y with darker axes labels, darker lines, and dark titles on the above created data frame, add the following code to the above snippet −

x<-rpois(20,5) y<-rpois(20,2) df<-data.frame(x,y) library(ggplot2) ggplot(df,aes(x,y))+geom_point()+theme_classic(base_size=20)

Output

If you execute all the above given snippets as a single program, it generates the following Output −