PlotCirc中的标签旋转（DescTools包）

Question

我正在使用DescTools R包的PlotCirc()函数来显示列联表：

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）以便它们从圆圈（指向圆圈中间的文本基线）展开？即第一个标签“ABCDEFG”应该向上旋转几乎-90度，而“CDEFGHI”应该向下旋转大约45度，依此类推。

Answer 1

我无法弄清楚如何在该包中做到这一点。但是，它仍有可能：

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

Answer 2

DescTools v0.99.8现在提供了一个函数参数las，它确实完成了这项工作（感谢作者Andri Signorell）。