Create plot with only x axis-CodePudding

I want to create a bubble plot without the y axis, meaning the x axis represents a range between certain values and the size of the bubbles corresponds to a "number" variable.

Since geom_point() requires a y variable, I created a new column with only zero values and assigned it to the y axis.

ggplot(df, aes(x=range, y=new, size = numberPoints))  
    geom_point(alpha=0.5, shape=19)  
    scale_size(range = c(.1, 24))  
    scale_y_continuous(breaks = NULL)

However, it gave the following result (the y axis is too large):

I only wanted the bubbles above the x axis (without too much space), but I can't find a way to do it.

CodePudding user response：

You can use coord_fixed to "reduce" your axis

library(dplyr)
library(ggplot2)

data.frame(x = c(1,2,3,4), size = c(1,1,4,8)) %>% 
  ggplot(aes(x=x, y=1, size = size))  
  geom_point(alpha=0.5, shape=19)  
  scale_size(range = c(.1, 24))  
  scale_y_continuous(breaks = NULL) 
  coord_fixed(6)