Dumbbell Chart

Authors

[Editor] Hu Zheng;

[Contributors]

Dumbbell Chart can display the data change.

Setup

System Requirements: Cross-platform (Linux/MacOS/Windows)
Programming language: R
Dependent packages: ggplot2; ggalt

# Install packages
if (!requireNamespace("ggplot2", quietly = TRUE)) {
  install.packages("ggplot2")
}
if (!requireNamespace("ggalt", quietly = TRUE)) {
  install.packages("ggalt")
}

# Load packages
library(ggplot2)
library(ggalt)

Data Preparation

# Load data
data <- read.delim("files/Hiplot/048-dumbbell-data.txt", header = T)

# View data
head(data)

    country  y1952  y2007
1 Argentina 62.485 75.320
2   Bolivia 40.414 65.554
3    Brazil 50.917 72.390
4    Canada 68.750 80.653
5     Chile 54.745 78.553
6  Colombia 50.643 72.889

Visualization

# Dumbbell Chart
colors <- c("#3B4992FF","#EE0000FF")
p <- ggplot(data, aes(y = reorder(country, y1952), x = y1952, xend = y2007)) +
  geom_dumbbell(size = 1, size_x = 3,  size_xend = 3, colour = "#AFAFAF",  
                colour_x = colors[1],  colour_xend = colors[2]) +
  labs(title = "Dummbbell Chart", x = "Life Expectancy (years)",
       y = "country") +
  theme_minimal() +
  theme(text = element_text(family = "Arial"),
        plot.title = element_text(size = 12,hjust = 0.5),
        axis.title = element_text(size = 12),
        axis.text = element_text(size = 10),
        axis.text.x = element_text(angle = 0, hjust = 0.5,vjust = 1),
        legend.position = "right",
        legend.direction = "vertical",
        legend.title = element_text(size = 10),
        legend.text = element_text(size = 10))

p