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How to display 0 at Y-axis using ggplot2 in R?
To display 0 at Y-axis, we can set the limits for Y-axis using scale_y_continuous function of ggplot2 package. For example, if we have two columns say x and y in an R data frame called df then the scatterplot with displaying 0 at Y-axis can be created by using the below command
ggplot(df,aes(x,y))+geom_point()+scale_y_continuous(limits=c(0,”upperlimit”))
Consider the below data frame −
Example
x<-rpois(20,5) y<-rpois(20,5) df<-data.frame(x,y) df
Output
x y 1 5 9 2 7 4 3 5 3 4 6 6 5 6 5 6 6 4 7 4 8 8 9 6 9 6 5 10 8 3 11 2 6 12 10 6 13 5 3 14 1 6 15 5 3 16 5 6 17 5 1 18 4 2 19 2 7 20 4 10
Loading ggplot2 package and creating scatterplot of x and y −
Example
library(ggplot2) ggplot(df,aes(x,y))+geom_point()
Output
Creating the scatterplot of x and y with display of 0 on Y-axis −
Example
ggplot(df,aes(x,y))+geom_point()+scale_y_continuous(limits=c(0,12))
Output
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