Try It Yourself - SyntaxStudy Editor

HTML / CSS / JS

library(ggplot2)
data(mpg)
data(diamonds)

# geom_bar — counts automatically
ggplot(mpg, aes(x = class)) +
    geom_bar(fill = "steelblue") +
    labs(title = "Car count by class")

# Grouped bar chart
ggplot(mpg, aes(x = class, fill = drv)) +
    geom_bar(position = "dodge") +
    labs(title = "Class by drive type (dodged)")

# Stacked proportions
ggplot(mpg, aes(x = class, fill = drv)) +
    geom_bar(position = "fill") +
    labs(y = "Proportion")

# Histogram
ggplot(mpg, aes(x = hwy)) +
    geom_histogram(binwidth = 2, fill = "coral", colour = "white") +
    labs(title = "Distribution of highway MPG")

# Density plot
ggplot(mpg, aes(x = hwy, fill = drv)) +
    geom_density(alpha = 0.4) +
    labs(title = "Highway MPG density by drive type")

# Boxplot with jittered points
ggplot(mpg, aes(x = class, y = hwy)) +
    geom_boxplot(outlier.shape = NA) +
    geom_jitter(width = 0.2, alpha = 0.4, colour = "steelblue") +
    labs(title = "Highway MPG by car class")

# facet_wrap
ggplot(mpg, aes(x = displ, y = hwy)) +
    geom_point(alpha = 0.5) +
    facet_wrap(~ class, nrow = 2) +
    labs(title = "MPG vs displacement per class")

# facet_grid (row by cyl, col by drv)
ggplot(mpg, aes(x = displ, y = hwy)) +
    geom_point(alpha = 0.5) +
    facet_grid(cyl ~ drv) +
    labs(title = "Grid facet: cylinders x drive type")