ggplot group by

DeliaBlue answered on August 10, 2022 Popularity 5/10 Helpfulness 3/10

answer ggplot group by

ggplot group by

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p <- ggplot(mtcars, aes(wt, mpg))

// A basic scatter plot
p + geom_point(size = 4)

// Using the colour aesthetic
p + geom_point(aes(colour = factor(cyl)), size = 4)

// Using the shape aesthetic
p + geom_point(aes(shape = factor(cyl)), size = 4)


// Using fill
p <- ggplot(mtcars, aes(factor(cyl)))
p + geom_bar()

p + geom_bar(aes(fill = factor(cyl)))

p + geom_bar(aes(fill = factor(vs)))


// Using linetypes
ggplot(economics_long, aes(date, value01)) +
  geom_line(aes(linetype = variable))


// Use the group aesthetic to map a different line for each  subject.
p + geom_line(aes(group = Subject))


// Different groups on different layers
p <- p + geom_line(aes(group = Subject))

// Using the group aesthetic with both geom_line() and geom_smooth()
// groups the data the same way for both layers
p + geom_smooth(aes(group = Subject), method = "lm", se = FALSE)
# > `geom_smooth()` using formula 'y ~ x'

// Changing the group aesthetic for the smoother layer fits a single line of best fit across all boys
p + geom_smooth(aes(group = 1), size = 2, method = "lm", se = FALSE)

/*
There is no need to specify the group aesthetic here; the default grouping
 works because occasion is a discrete variable. To overlay individual
 trajectories, we again need to override the default grouping for that layer
 with aes(group = Subject)
 */
p + geom_line(aes(group = Subject), colour = "blue")

Popularity 5/10 Helpfulness 3/10 Language typescript

Source: ggplot2.tidyverse.org

Tags: group-by typescript

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Contributed on Aug 10 2022

DeliaBlue

0 Answers Avg Quality 2/10

ggplot group by

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