How to change the linetype for geom_vline in R?

To change the linetype for geom_vline, we can use linetype argument in geom_vline function of ggplot2 package. There are mainly six linetypes that can be used and these values are 0=blank, 1=solid (default), 2=dashed, 3=dotted, 4=dotdash, 5=longdash, 6=twodash.

Consider the below data frame −

x<-rnorm(1000)
df<-data.frame(x)

Loading ggplot2 package and creating histogram of x with vertical line −

Example

library(ggplot2) ggplot(df,aes(x))+geom_histogram(bins=10)+geom_vline(xintercept=0)

Output

Creating histogram of x with vertical line of different line type −

Example

ggplot(df,aes(x))+geom_histogram(bins=10)+geom_vline(xintercept=0,linetype="dotdash")

Output