position_dodge

0th

Percentile

Adjust position by dodging overlaps to the side.

Adjust position by dodging overlaps to the side.

Usage
position_dodge(width = NULL)
Arguments
width
Dodging width, when different to the width of the individual elements. This is useful when you want to align narrow geoms with wider geoms. See the examples for a use case.
See Also

Other position adjustments: position_fill, position_identity, position_jitterdodge, position_jitter, position_nudge

Aliases
  • position_dodge
Examples
ggplot(mtcars, aes(factor(cyl), fill = factor(vs))) +
  geom_bar(position = "dodge")

ggplot(diamonds, aes(price, fill = cut)) +
  geom_histogram(position="dodge")
# see ?geom_boxplot and ?geom_bar for more examples

# To dodge items with different widths, you need to be explicit
df <- data.frame(x=c("a","a","b","b"), y=2:5, g = rep(1:2, 2))
p <- ggplot(df, aes(x, y, group = g)) +
  geom_bar(
    stat = "identity", position = "dodge",
    fill = "grey50", colour = "black"
  )
p

# A line range has no width:
p + geom_linerange(aes(ymin = y-1, ymax = y+1), position = "dodge")
# You need to explicitly specify the width for dodging
p + geom_linerange(aes(ymin = y-1, ymax = y+1),
  position = position_dodge(width = 0.9))

# Similarly with error bars:
p + geom_errorbar(aes(ymin = y-1, ymax = y+1), width = 0.2,
  position = "dodge")
p + geom_errorbar(aes(ymin = y-1, ymax = y+1, width = 0.2),
  position = position_dodge(width = 0.90))

Documentation reproduced from package ggplot2, version 2.1.0, License: GPL-2

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