Treemap Smple G20

ライブラリをインポートする

library(ggplot2)
library(treemap)
library(treemapify)
library(knitr)

’treemapify’に含まれるG20のサンプル

# show sample data
G20

G20のグラフを作成

# draw the tree map of G 20
ggplot(G20, aes(area = gdp_mil_usd, fill = region, label = country)) +
  geom_treemap() +
  geom_treemap_text(grow = T, reflow = T, colour = "black") +
  facet_wrap( ~ econ_classification) +
  scale_fill_brewer(palette = "Set1") +
  theme(legend.position = "bottom") +
  labs(
    title = "The G-20 major economies",
    caption = "The area of each country is proportional to its relative GDP
    within the economic group (advanced or developing)",
    fill = "Region"
  )