One category per faceted box plots

Question

I would like one category per faceted box plot. Instead I am currently getting distribution points for all categories in each faceted box.

Category   Age
A          31
A          35
A          28
B          34
B          30
B          40
C          22
C          25
C          24

ggplot(DATASET, aes(x = DATASET$Category, y = DATASET$Age)) +
    geom_point() +
    ggtitle('Distribution of Player Age By Category') +
    facet_grid( .~DATASET$Category )

score 1 · Accepted Answer · answered Sep 11 '18 at 11:18

There is no real need for facets here other than aesthetics (see @LAP's answer), but if you insist on using facets you can do

ggplot(df, aes(x = Category, y = Age)) +
    geom_point() +
    ggtitle('Distribution of Player Age By Category') +
    facet_wrap(~ Category, scales = "free_x")

More importantly, never use $ (column indexing) inside aes. This can lead to very unexpected behaviour, in particular when using facets.

score 0 · Answer 2 · answered Sep 11 '18 at 11:14

0

No need to facet for boxplotting with ggplot2:

df <- read.table(text = "Category   Age
A          31
A          35
A          28
B          34
B          30
B          40
C          22
C          25
C          24", header = TRUE)

ggplot(df, aes(x = Category, y = Age)) +
  geom_boxplot() +
  ggtitle('Distribution of Player Age By Category')

answered Sep 11 '18 at 11:14

LAP

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is it possible for A to be in a facet box, b to be in another facet box and so on? – RedEyeUser Sep 11 '18 at 11:21
See @MauritsEvers answer if you really need the boxes. – LAP Sep 11 '18 at 11:22

One category per faceted box plots

2 Answers2