Code for type=“h” in ggplot2

Question

This may sound really simple but I\'m trying to find the equivalent code to plot(x,y, type=\"h\") as a qplot code. I already have:

qplot(x,y,         


        

Answer 1

It's a little clunky, but I think you need geom_segment().

d <- data.frame(x=1:5,y=c(0.1,0.4,0.8,0.2,0.9))
library(ggplot2)
qplot(x=x,xend=x,y=0,yend=y,data=d,geom="segment")
## or equivalently
ggplot(d,aes(x=x,xend=x,y=0,yend=y))+geom_segment()

This gives (y label adapted):

In contrast, using the histogram with stat=identity:

qplot(data = d, x=x, y=y, stat="identity")

gives:

For completeness, the plot with type='h' looks like this: