r - PlotCirc 中的标签旋转(DescTools 包)

Question

我正在使用 DescTools 的 PlotCirc() 函数R可视化列联表的包:

library(DescTools)

tab <- matrix(c(2,5,8,3,10,12,5,7,15), nrow=3, byrow=FALSE)
dimnames(tab) <- list(c("ABCDEFG","BCDEFGH","CDEFGHI"), c("D","E","F"))

PlotCirc( tab,
          acol = c("dodgerblue","seagreen2","limegreen","olivedrab2","goldenrod2","tomato2"),
          rcol = SetAlpha(c("red","orange","olivedrab1"), 0.5)
)

问题:

如何旋转所有标签(左侧和右侧)，以便它们从圆(文本基线指向圆的中间)展开？ IE。第一个标签“ABCDEFG”应该旋转近 -90 度，指向上方，而“CDEFGHI”应该旋转大约 45 度，指向下方，依此类推。

Answer 1

我不知道如何在那个包中做到这一点。然而，它仍然是可能的:

tab <- matrix(c(2,5,8,3,10,12,5,7,15), nrow=3, byrow=FALSE)
dimnames(tab) <- list(c("A","B","C"), c("D","E","F"))



PlotCirc( tab,labels = NA, cex.lab = 1.0,acol = c("dodgerblue","seagreen2","limegreen","olivedrab2","goldenrod2","tomato2"),rcol =   SetAlpha(c("red","orange","olivedrab1")))



text(3,15,"ABCDEFG",srt=80)
text(11,10,"BCDEFG",srt=40)
text(13,-5,"CDEFG",srt=-30)
text(-5,-12,"DEFG",srt=60)
text(-12,-5,"EFG",srt=30)
text(-9,11,"FG",srt=-45)

http://i.stack.imgur.com/sK6Kr.png