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R Programming how to display both axes’ labels of a ggplot2 graph in italics?
To display both axes’ labels of a ggplot2 graph in italics in R, we can use theme function where we can set the face of axis.text.x and axis.text.y argument to italic.
For Example, if we have a data frame called df that contains two columns say X and Y then we can create a scatterplot of X and Y with axes labels in italics by using the below mentioned command −
ggplot(df,aes(X,Y))+geom_point()+theme(axis.text.x=element_text(face="italic"),axis.text.y=element_text(face="italic"))
Example
Following snippet creates a sample data frame −
x<-rnorm(20) y<-rnorm(20) df<-data.frame(x,y) df
The following dataframe is created
x y 1 -0.21062292 1.3580689 2 0.85345738 -0.3940783 3 1.15551683 0.8026387 4 0.53607421 0.8570883 5 2.79518912 0.8876277 6 1.09716564 -1.4281605 7 -0.13668626 -0.1868037 8 1.10768308 -0.4847581 9 1.04976182 0.8196092 10 -0.76949912 -1.1124586 11 -0.78883763 -0.6422824 12 0.11894561 -0.4956317 13 0.09148858 -0.1836053 14 -0.13913979 -0.5980742 15 0.60553342 0.2982480 16 1.01255418 1.8794044 17 0.37599627 -0.3417982 18 0.89855822 1.4217152 19 -0.86766244 -1.5782228 20 -0.93164321 1.1106708
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<-rnorm(20) y<-rnorm(20) 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 axes labels in italics on the above created data frame, add the following code to the above snippet −
x<-rnorm(20) y<-rnorm(20) df<-data.frame(x,y) library(ggplot2) ggplot(df,aes(x,y))+geom_point()+theme(axis.text.x=element_text(face="italic"),axis.text.y=element_text(face="italic"))
Output
If you execute all the above given snippets as a single program, it generates the following Output −
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