在条形图中添加饼图

问题描述

我的目标是创建一个分类变量的条形图，然后在其中添加一个饼形图，如所附图像所示。

我的数据与图片中的数据相同，并且在下面：

#For bar grapgh  
chromosomes = c("1A","1B","1D","2A","2B","2D","3A","3B","3D","4A","4B","4D","5A","5B","5D","6A","6B","6D","7A","7B","7D")
Frequency = c(668,752,213,826,948,334,625,834,264,488,391,136,745,917,234,543,848,182,901,740,241)
data_bar <- data.frame(chromosomes,Frequency)

#For pie chart
Genome = c("A","B","D")
Count = c(4796,5430,1604)
data_pie <- data.frame(Genome,Count)

如果有人可以引导我或将我引向可以找到答案的地方，我将不胜感激

解决方法

这是一个ggplot2解决方案：

pie <- ggplot(data_pie,aes(x = 1,y = Count,fill = Genome)) + 
  geom_col(color = "black") + 
  scale_fill_manual(values = c("red2","forestgreen","dodgerblue3")) + 
  coord_polar(theta = "y") + 
  theme_void() + 
  theme(legend.position = "none")

 ggplot(data_bar) +
  geom_col(aes(chromosomes,Frequency,fill = substr(chromosomes,2,2)),color = "black",width = 0.5) +
  scale_fill_manual(values = c("red2","dodgerblue3")) +
   theme_classic() +
   theme(legend.position = "none") +
   annotation_custom(ggplotGrob(pie),xmin = "2B",xmax = "6A",ymin = 500)

仅使用基本R函数，请参见以下代码：

## Your data ---------------------------------
#For bar grapgh  
chromosomes = c("1A","1B","1D","2A","2B","2D","3A","3B","3D","4A","4B","4D","5A","5B","5D","6A","6B","6D","7A","7B","7D")
Frequency = c(668,752,213,826,948,334,625,834,264,488,391,136,745,917,234,543,848,182,901,740,241)

#For pie chart
Genome = c("A","B","D")
Count = c(4796,5430,1604)

## One idea to start with --------------------

plot.new()
par(mfrow = c(2,1),# set the layout,you might also consider layout() or split.screen() as suggested in ?par
    mar=c(4,4,1,# this set up give enough space to see axis labels and titles
    oma=c(0,0)) # remove outer margins
pie(Count,labels = Genome)
barplot(Frequency~chromosomes)

输出：

我认为可以通过调整par()参数使它看起来更整洁，但我对它们并不十分熟悉。也有cowplot和gridExtra软件包与ggplot2很好地配合。

geom-bar geom-point r r