Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to create a dotted vertical line using ggplot2 in R?
To create a vertical line using ggplot2, we can use geom_vline function of ggplot2 package and if we want to have a dotted vertical line then linetype will be set to 3 inside the same function. To draw the line, we will have to provide xintercept because the line will start on X-axis.
Check out the below example to understand how it works.
Example
Following snippet creates a sample data frame −
x<-rpois(20,5) y<-rpois(20,2) df<-data.frame(x,y) df
The following dataframe is created −
x y 1 5 2 2 3 4 3 6 2 4 3 4 5 4 2 6 5 2 7 7 1 8 4 2 9 3 2 10 4 4 11 6 2 12 2 2 13 7 1 14 7 1 15 6 1 16 7 1 17 7 2 18 7 1 19 6 3 20 4 3
To load ggplot2 package and create point chart between x and y with vertical line at X=5, add the following code to the above snippet −
library(ggplot2) ggplot(df,aes(x,y))+geom_point()+geom_vline(xintercept=5)
Output
If you execute all the above given snippets as a single program, it generates the following output −
Now, to create point chart between x and y with dotted vertical line at X=5, add the following code to the above snippet −
ggplot(df,aes(x,y))+geom_point()+geom_vline(xintercept=5,linetype=3)
Output
If you execute all the above given snippets as a single program, it generates the following output −
6K+ Views
