哑铃图

作者

[编辑] 郑虎;

[审核] .

哑铃图用于展示数据变化。

环境配置

系统: Cross-platform (Linux/MacOS/Windows)
编程语言: R
依赖包: data.table; jsonlite; ggplot2; ggalt

# 安装包
if (!requireNamespace("data.table", quietly = TRUE)) {
  install.packages("data.table")
}
if (!requireNamespace("jsonlite", quietly = TRUE)) {
  install.packages("jsonlite")
}
if (!requireNamespace("ggplot2", quietly = TRUE)) {
  install.packages("ggplot2")
}
if (!requireNamespace("ggalt", quietly = TRUE)) {
  install.packages("ggalt")
}

# 加载包
library(data.table)
library(jsonlite)
library(ggplot2)
library(ggalt)

数据准备

# 加载数据
data <- data.table::fread(jsonlite::read_json("https://hiplot.cn/ui/basic/dumbbell/data.json")$exampleData$textarea[[1]])
data <- as.data.frame(data)

# 查看数据
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

可视化

# 哑铃图
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