Question

我有一个在R中创建的Sankey图。它生成图表，但节点名称放在右侧节点的节点左侧。我希望所有名字都在右边，所以真实姓名（更长）不会相互重叠。

下面是一组完整的工作代码，它们将生成我目前正在使用的图表。

library(networkD3)

nodes <- data.frame('name' = 
c('Node0','Node1','Node2','Node3','Node4','Node5','Node6',                   
'Node7','Node8','Node9','Node10','Node11','Node12','Node13',
'Node14','Node15','Node16','Node17','Node18','Node19',
'Node20','Node21','Node22','Node23','Node24','Node25',
'Node26','Node27','Node28','Node29','Node30','Node31',
'Node32','Node33'))

links = as.data.frame(matrix(c(
  0, 3,140,
  0, 4,140,
  0, 5,140,
  0, 6,140,
  1, 3,140,
  1, 4,140,
  1, 5,140,
  1, 6,140,
  2, 3,140,
  2, 4,140,
  2, 5,140,
  2, 6,140,
  3, 7,130,
  3, 8,130,
  3, 9,50,
  3,10,50,
  3,11,50,
  4,12,140,
  4,13,100,
  4,14,100,
  4,15,80,
  5,16,150,
  5,17,150,
  5,18,60,
  5,19,60,
  6,20,180,
  6,21,80,
  6,22,80,
  6,23,80,
  7,24,13,
  7,33,13,
  7,31,104,
  8,24,13,
  8,33,13,
  8,26,52,
  8,27,52,
  9,24,10,
  9,33,10,
  9,29,30,
  9,30,30,
  10,24,10,
  10,33,10,
  10,29,30,
  10,30,30,
  11,24,10,
  11,33,10,
  11,29,30,
  11,30,30,
  12,24,16,
  12,33,16,
  12,26,36,
  12,27,36,
  12,28,36,
  13,24,10,
  13,33,10,
  13,26,30,
  13,27,30,
  13,28,30,
  14,24,10,
  14,33,10,
  14,26,30,
  14,27,30,
  14,28,30,
  15,24,10,
  15,33,10,
  15,31,60,
  16,24,30,
  16,33,30,
  16,32,90,
  17,24,30,
  17,33,30,
  17,32,90,
  18,24,10,
  18,33,10,
  18,25,40,
  19,24,30,
  19,33,30,
  20,24,90,
  20,33,90,
  21,33,80,
  22,24,10,
  22,33,10,
  22,29,30,
  22,30,30,
  23,24,40,
  23,33,40),
byrow = TRUE, ncol = 3))

names(links) = c("source", "target", "value")
sankeyNetwork(Links = links, Nodes = nodes,
              Source = "source", Target = "target",
              Value = "value", NodeID = "name",
              fontSize= 15, nodeWidth = 20,
              colourScale = JS("d3.scaleOrdinal(d3.schemeCategory20b);"))

Answer 1

您可以在创建sankey网络图之后通过使用htmlwidgets包添加一些JavaScript来设置文本锚点。如果希望文本位于右侧节点的右侧，则可能还需要调整左边距。

library(htmlwidgets)

sn <- sankeyNetwork(Links = links, Nodes = nodes,
                    Source = "source", Target = "target",
                    Value = "value", NodeID = "name",
                    fontSize= 15, nodeWidth = 20, margin = list(left = 100),
                    colourScale = JS("d3.scaleOrdinal(d3.schemeCategory20b);"))

onRender(
  sn,
  '
  function(el, x) {
    d3.selectAll(".node text").attr("text-anchor", "begin").attr("x", 20);
  }
  '
)

如何在Sankey图中控制节点标签

1 个答案: