用ggplot创建浮动饼图 [英] create floating pie charts with ggplot
问题描述
目前我正在使用浮动饼图作为其中一个绘图的报告。目前我使用plotrix软件包来绘制这个饼图。但是因为我对所有其他地块使用ggplot2,所以饼图看起来不同。所以我试图用ggplot2创建图。目前我有两个问题:
-
ggplot饼图绘制在极坐标系统上。我想在笛卡尔协调系统上绘制多个饼图。目前我不知道该怎么做。
-
我希望能够控制笛卡尔坐标系上的馅饼半径。
-
根据定义,饼图使用极坐标。您可以在使用笛卡尔坐标的另一个图形上叠加一些饼图,但它可能会很糟糕。事实上,无论如何,饼图总是很糟糕,所以要小心你想要的东西。
The ggplot pie charts are plotted on a polar coordination system. I want to plot multiple pie charts on Cartesian coordination system. At the moment I do not know how to do this.
I want to be able to control the pie radius on the Cartesian coordination system.
Pie charts by definition use polar coordinates. You could overlay some pie charts on another graph that used Cartesian coordinates but it would probably be awful. In fact, pie charts are mostly awful anyway, so be careful what you wish for.
An example on the
coord_polar
page.
<$ p
plot(1:5,type =n,xlab =x,ylab =y)
floating.pie (2,3,c(1,3,5),半径= 0.5)
floating.pie(4,2,c(2,4),半径= 0.2)
floating.pie(4.5 ,4,c(3,2,5,1),radius = 0.3)
感谢您的时间和帮助。
该代码中的重要一点是指定该半径映射到y美学。
df < - data.frame(
variable = c(类似,不类似),
值= c(80,20)
)
ggplot(df,aes(x =,y = value,fill = variable))+
geom_bar(width = 1,stat = identity)+
scale_fill_manual(values = c(red,yellow))+
coord_polar(y,start = 2 * pi / 3)+#< - 读取线!
ggtitle(吃豆人)
Currently I am working on report with a floating pie chart as one of the plots. Currently I use the plotrix package to plot this pie chart. But since I use ggplot2 for all the other plots, the pie plot looks different. So I'm trying to create the plot using ggplot2. Currently I have two issues:
Here is the code I currently use:
library("plotrix")
plot(1:5, type="n", xlab="x", ylab="y")
floating.pie(2, 3, c(1,3,5), radius=0.5)
floating.pie(4, 2, c(2,4), radius=0.2)
floating.pie(4.5, 4, c(3,2,5,1), radius=0.3)
Thanks for your time and help.
The important bit in that code is specifying that radius maps to the "y" aesthetic.
df <- data.frame(
variable = c("resembles", "does not resemble"),
value = c(80, 20)
)
ggplot(df, aes(x = "", y = value, fill = variable)) +
geom_bar(width = 1, stat = "identity") +
scale_fill_manual(values = c("red", "yellow")) +
coord_polar("y", start = 2 * pi / 3) + #<- read this line!
ggtitle("Pac man")
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