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How to set the X-axis labels in histogram using ggplot2 at the center in R?
The boundary argument of geom_histogram function and breaks argument of scale_x_continuous function can help us to set the X-axis labels in histogram using ggplot2 at the center. We need to be careful about choosing the boundary and breaks depending on the scale of the X-axis values. Check out the below example to understand how it works.
Example
Consider the below data frame −
Example
> x<-rpois(20,5) > df<-data.frame(x) > df
Output
x 1 5 2 7 3 6 4 4 5 7 6 7 7 10 8 3 9 6 10 6 11 5 12 4 13 4 14 6 15 7 16 4 17 1 18 11 19 6 20 9
Loading ggplot2 package and creating the histogram −
Example
> library(ggplot2) > ggplot(df,aes(x))+ geom_histogram(binwidth=1)
Output
Creating the histogram with X-axis labels at the center −
Example
>ggplot(df,aes(x))+geom_histogram(binwidth=1,boundary=-0.5)+ scale_x_continuous(breaks=1:11)
Output
Updated on 05-Jan-2021 06:14:51
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