将条形图转换为R中的饼图 [英] Converting bar chart to pie chart in R

问题描述

我有以下数据和代码：

dd
  grp categ condition value
1   A     X         P     2
2   B     X         P     5
3   A     Y         P     9
4   B     Y         P     6
5   A     X         Q     4
6   B     X         Q     5
7   A     Y         Q     8
8   B     Y         Q     2
> 
> 
dput(dd)
structure(list(grp = structure(c(1L, 2L, 1L, 2L, 1L, 2L, 1L, 
2L), .Label = c("A", "B"), class = "factor"), categ = structure(c(1L, 
1L, 2L, 2L, 1L, 1L, 2L, 2L), .Label = c("X", "Y"), class = "factor"), 
    condition = structure(c(1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L), .Label = c("P", 
    "Q"), class = "factor"), value = c(2, 5, 9, 6, 4, 5, 8, 2
    )), .Names = c("grp", "categ", "condition", "value"), out.attrs = structure(list(
    dim = structure(c(2L, 2L, 2L), .Names = c("grp", "categ", 
    "condition")), dimnames = structure(list(grp = c("grp=A", 
    "grp=B"), categ = c("categ=X", "categ=Y"), condition = c("condition=P", 
    "condition=Q")), .Names = c("grp", "categ", "condition"))), .Names = c("dim", 
"dimnames")), row.names = c(NA, -8L), class = "data.frame")


ggplot(dd, aes(grp,value, fill=condition))+geom_bar(stat='identity')+facet_grid(~categ)

b $ b

>

如何将此条形图转换为饼图？我想要这里4个饼，其大小对应于各自的酒吧的高度。我尝试下面但是他们不工作：

How can I convert this bar chart to pie chart? I want 4 pies here with their sizes corresponding to heights of respective bars here. I tried following but they did not work:

ggplot(dd, aes(grp,value, fill=condition))+geom_bar(stat='identity')+facet_grid(~categ)+coord_polar()
ggplot(dd, aes(grp,value, fill=condition))+geom_bar(stat='identity')+facet_grid(~categ)+coord_polar('y')

我还试图使饼图类似于在ggplot2中使用可变饼大小来绘制图表，但我无法管理我的数据。感谢您的帮助。

I also tried to make pie chart similar to Pie charts in ggplot2 with variable pie sizes but I am not able to manage with my data. Thanks for your help.

推荐答案

使用与您发布的链接相同的想法，您可以添加 size 将您的数据帧设置为每个组的值的总和，并将其用作 width 参数：

Using the same idea as in the link you posted, you could add a column size do your dataframe that would be the sum of the values for each group, and use that as the width argument:

library(dplyr)
dd<-dd %>% group_by(categ,grp) %>% mutate(size=sum(value))
ggplot(dd, aes(x=size/2,y=value,fill=condition,width=size))+geom_bar(position="fill",stat='identity')+facet_grid(grp~categ)+coord_polar("y")

这篇关于将条形图转换为R中的饼图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！