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How to represent all values of X-axis or Y-axis on the graph in R using ggplot2 package?
If we have many unique elements or repeated in a column of an R data frame and create a graph using that column, either on X-axis or Y-axis then R automatically choses the axes labels, this might not display all the unique values of the column in the plot. Therefore, we can use scale_x_continuous function or scale_y_continuous function with labels depending on our requirement to display the column values.
Consider the below data frame −
Example
x<-1:10 y<-rpois(10,2) df<-data.frame(x,y) df
Output
x y 1 1 1 2 2 1 3 3 5 4 4 3 5 5 3 6 6 0 7 7 2 8 8 5 9 9 2 10 10 4
Loading ggplot2 package and creating a point chart between x and y by displaying all values of x axis −
Example
library(ggplot2) ggplot(df,aes(x,y))+geom_point()+scale_x_continuous(labels=as.character(x),breaks=x)
Creating a point chart between x and y by displaying all values of Y axis −
Example
ggplot(df,aes(x,y))+geom_point()+scale_y_continuous(labels=as.character(y),breaks=y)
Updated on: 16-Oct-2020
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