How to zoom in on a specific range of values for a categorical variable in ggplot2?

I just want to zoom-in on the x axis between the values ford and nissan in the mpg dataframe.

packageused: tidyverse

But I am getting the following error when using coord_cartesian() function

p<-ggplot(mpg,aes(x=manufacturer,y=class))

p+geom_point()+ + coord_cartesian(xlim = c('ford','nissan'))


Error in +coord_cartesian(xlim = c("ford", "nissan")) : invalid
argument to unary operator

1 Answer
1

You can use a function for contextual zoom from ggforce package (facet_zoom) to achieve this:

ggforce

facet_zoom

# loading needed libraries
library(ggplot2)
library(ggforce)

# selecting variables to display
names <- as.vector(unique(mpg$manufacturer))
selected.names <- names[4:11]

# zooming in on the axes
ggplot(mpg, aes(x = manufacturer, y = class)) +
geom_jitter() +
facet_zoom(x = manufacturer %in% selected.names)


Created on 2018-07-01 by the reprex package (v0.2.0).

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