Sankey图在R [英] Sankey diagram in R
问题描述
尝试在R的 networkD3
包的帮助下创建一个相当通用的Sankey图。只是为了参考 - 这是包手册中的示例
库(networkD3)
库(jsonlite)
library(magrittr)
energy< - https://cdn.rawgit.com/christophergandrud/networkD3/master/JSONdata/energy.json%>%
fromJSON
sankeyNetwork(Links = energy $ links,
Nodes = energy $ nodes,
Source =source,
Target =target,
Value =value,
NodeID =name,
units =TWh,
fontSize = 12,
nodeWidth = 30)
其结果是:
我相当直接的扩展包括使用以下基础数据构建一个图表:
links< - structure(list(source = structure(c(1L,2L,3L,1L,2L,3L,4L,
5L,4L,5L),
.Label = c(1,2,3,4,5),
class =factor ,1L,2L,2L,2L,3L,3L,4L,
4L),
Label = c(4,5,6,7 $ b class =factor),
value = c(88L,774L,1220L,412L,5335L,96L,3219L,
1580L,111L,7607L)),
row.names = c(NA,10L),
class =data.frame,
.Names = c(source,target,value))
节点< - 结构(list(lab = c(A,B,C,D,E,F,G)),
row.names = c(NA,-7L),
.Names =lab,class =data.frame)
b $ b
这个简单的应用程序选择,使我的数据最接近地反映手动示例。当我运行类似的功能,虽然:
sankeyNetwork(Links = links,
pre>
Nodes = nodes,
Source =source,
Target =target,
Value =value,
NodeID =lab)
没有发生任何事情。
解决方案如果您开始编号
source
:
:
目标
#首先强制链接到数字的元素,以便我们可以减去1
links []< - lapply(links,function(x)as.numeric(as.character(x)) )
links [,1:2]< - links [,1:2] - 1
sankeyNetwork(links,nodes,'source','target','value',NodeID ='lab ')
Attempting to make a fairly generic Sankey diagram with the help of R's networkD3
package. Just for reference--here's the example from the package's manual
library(networkD3)
library(jsonlite)
library(magrittr)
energy <- "https://cdn.rawgit.com/christophergandrud/networkD3/master/JSONdata/energy.json" %>%
fromJSON
sankeyNetwork(Links = energy$links,
Nodes = energy$nodes,
Source = "source",
Target = "target",
Value = "value",
NodeID = "name",
units = "TWh",
fontSize = 12,
nodeWidth = 30)
which results in:
My fairly straightforward extension consists of building a diagram with the following underlying data:
links <- structure(list(source = structure(c(1L, 2L, 3L, 1L, 2L, 3L, 4L,
5L, 4L, 5L),
.Label = c("1", "2", "3", "4", "5"),
class = "factor"),
target = structure(c(1L, 1L, 1L, 2L, 2L, 2L, 3L, 3L, 4L,
4L),
.Label = c("4", "5", "6", "7"),
class = "factor"),
value = c(88L, 774L, 1220L, 412L, 5335L, 96L, 3219L,
1580L, 111L, 7607L)),
row.names = c(NA, 10L),
class = "data.frame",
.Names = c("source", "target", "value"))
nodes <- structure(list(lab = c("A", "B", "C", "D", "E", "F", "G")),
row.names = c(NA, -7L),
.Names = "lab", class = "data.frame")
with this simple application chosen so that my data most closely reflects the manual example. When I run the comparable function, though:
sankeyNetwork(Links = links,
Nodes = nodes,
Source = "source",
Target = "target",
Value = "value",
NodeID = "lab")
Nothing happens. What's my mistake?
This works fine if you start numbering your source
and target
at 0
:
# First coercing elements of links to numeric, so that we can subtract 1
links[] <- lapply(links, function(x) as.numeric(as.character(x)))
links[, 1:2] <- links[, 1:2] - 1
sankeyNetwork(links, nodes, 'source', 'target', 'value', NodeID='lab')
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