如何为 R sunburst 中的每个类别指定颜色和切换标签？

Question

我似乎无法理解 sunburstR 包中的 sunburst 如何处理某些参数，即赋予它的颜色矢量以及它如何将颜色应用于不同的类别，以及如何显示不同分区的标签。

它有什么逻辑吗，有没有更好的方法来手动指定哪种颜色应该与哪个根/叶搭配？

来自?sunburst：（不知道“提供范围和/或域的列表”是什么意思。

colors  
vector of strings representing colors as hexadecimal for manual colors. 
If you want precise control of colors, supply a list with range and/or domain. 
For advanced customization, supply a JavaScript function.

谢谢！

sourcestatus

# A tibble: 5 x 2
  SourceStatus         count
  <chr>                <int>
1 blood-affected        4369
2 blood-unaffected      2848
3 blood-unknown            1
4 cell_line-affected    1797
5 cell_line-unaffected   151

创建旭日形：

 sunburst(sourcestatus, count = TRUE, percent= T, 
          colors = c("#6b5b95", "#feb236", "#d64161", "#ff7b25"))

Answer 1

简单地用颜色列表指定颜色：

colors = c("#6b5b95", "#feb236", "#d64161", "#ff7b25")

将逐层重复顺时针方向移动的那些颜色。这确保了同一层中没有相邻的叶子具有相同的颜色（子/父叶子可以）。如果只指定一种颜色，则忽略该颜色并使用默认调色板。

虽然不清楚如何使用事物 r 侧的域和范围来指定颜色，但您可以指定希望用什么颜色填充每片叶子。如果你有很多叶子，你会想要构建一个函数来填充这些数据，但这里有一个使用快速而脏的数据框和一些颜色的演示：

library(sunburstR)

leafs <- c("base","base-child1-grandchild1","base-child1-grandchild2","base-child1","base-child2-grandchild3","base-child2","base-child3-grandchild4","base-child3-grandchild5","base-child3-grandchild6","base-child3-grandchild7","base-child3")
values <- c(200,15,10,20,55,10,120,30,30,20,10)  

# colors
colors <- c("#c994c7","#6a51a3","#807dba","#bcbddc","#74c476","#c7e9c0","#fcbba1","#fc9272","#ef3b2c","#cb181d","#99000d")
# match those colors to leaf names, matched by index
labels <- c("base","grandchild1","grandchild2","child1","child2","grandchild3","grandchild4","grandchild5","grandchild6","grandchild7","child3")

df = data.frame(v1=leafs, v2=values);

sunburst(df, 
         colors = list(range = colors, domain = labels))

为每个第一级孩子提供自己的配色方案：

提供给颜色的列表包含一系列输出颜色和输入叶名称域，允许将特定颜色与特定叶配对。