如何使用igraph包从数据框架构建图形? [英] How do you build a graph from a data frame using the igraph package?
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问题描述
数据框架包含节点关系。
df = data.frame(
A = c(Berlin,Amsterdam,New York),
B = c(慕尼黑,乌得勒支,芝加哥)
)
:
柏林 - >慕尼黑
Amsteram - >乌特勒支
纽约 - >芝加哥
解决方案
igraph非常灵活,我相信是实现这一目标的多种方式。我发现网站提供的教程非常有帮助。
以下是从data.frame创建网络图的简单方法:
library(igraph)
df< - data.frame(
A = c(Berlin,Amsterdam,New York),
B = c(慕尼黑,乌得勒支,芝加哥))
df.g< - graph.data.frame(d = df,directed = FALSE)
图(df.g,vertex.label = V(df.g)$ name)
Any way to build a graph ( igraph package ) from a Data Frame in R ?
The data frame contains node relationships.
df = data.frame (
A = c("Berlin", "Amsterdam", "New York") ,
B = c("Munich", "Utrecht", "Chicago")
)
Edges are :
Berlin -> Munich
Amsteram -> Utrecht
New York -> Chicago
解决方案
igraph is very flexible and I'm sure there are a number ways to accomplish this. I found the tutorials provided on the website to be very helpful.
Here's one simple way to create a network plot from a data.frame:
library(igraph)
df <- data.frame(
A = c("Berlin", "Amsterdam", "New York") ,
B = c("Munich", "Utrecht", "Chicago"))
df.g <- graph.data.frame(d = df, directed = FALSE)
plot(df.g, vertex.label = V(df.g)$name)
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