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How to add approximately equal sign in a plot using ggplot2 in R?
To add approximately equal sign in a plot using ggplot2, we can use tilde sign twice as ~~ in geom_text function of ggplot2 package. For example, we can do this by using the following syntax geom_text(aes(label="NULL%~~%")). Check out the below example to understand how it works.
Example
Consider the below data frame −
x<-1:20 y<-rep(c(2,7,8,11,15,16,18,20,22,25),each=2) df<-data.frame(x,y) df
Output
x y 1 1 2 2 2 2 3 3 7 4 4 7 5 5 8 6 6 8 7 7 11 8 8 11 9 9 15 10 10 15 11 11 16 12 12 16 13 13 18 14 14 18 15 15 20 16 16 20 17 17 22 18 18 22 19 19 25 20 20 25
Loading ggplot2 package and creating a scatterplot between x and y with some text showing approximately equal inside the plot −
Example
library(ggplot2) ggplot(df,aes(x,y))+geom_point()+geom_text(aes(label="NULL%~~%Linear",x=3,y=25),parse=T)
Output
Updated on 06-Mar-2021 11:22:11
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