如何在“treemapify”中更改标签颜色/大小

Question

在“treemapify”中，我使用函数“paste0”将三个变量组合为标签，现在我想分别更改字体颜色和大小（如下代码中的注释）。 任何人都可以帮忙吗？谢谢！

library(ggplot2)
library(treemapify)
library(formattable)
plot_data <- data.frame(
  region=c("a","b","c","d","e","f"),
  amount=c(3,2,1,7,2,4),
 increase=c(0.5,0.1,0.7,0.4,0.3,0.9))

plot_data %>% ggplot(aes(area=amount,fill=region,
                         label=paste0(region, #' want the font color  'darkblue'
                                      '\n',
                                      comma(amount,1), # want the font color  'grey60'
                                      '\n',
                                      percent(increase,1) # want the font color  'white'
                                      )))+
  geom_treemap()+geom_treemap_text()

Answer 1

这是一个相当普通的解决方案，但它应该为您提供所需的灵活性：

ggplot(plot_data, aes(area = amount, fill = region)) +
  geom_treemap() + 
  geom_treemap_text(aes(label = region), color = "darkblue") +
  geom_treemap_text(aes(label = scales::comma(amount, 1)), 
                    color = "grey60", padding.y = unit(10, "mm")) +
  geom_treemap_text(aes(label = scales::percent(increase, 1)), color = "white",
                    padding.y = unit(20, "mm"))