使用Graphs.jl在Julia中创建简单的图形对象 [英] Create simple graph object in Julia using Graphs.jl

问题描述

我开始研究图论(我打算将其用于机器学习和/或贝叶斯推理).我想用Julia编码，找到了包图形.但是，如何使用该程序包创建简单的图呢?例如，这个:

I am starting to study graph theory (I plan to use it in machine learning and/or bayesian inference). I want to code in Julia, and found the package Graphs. But how can I use this package to create simple graphs? For example, this one:

如果我想知道如何使用Graphs创建代表该图形的Julia对象，这将非常有用.它的文档缺少示例，所以我无法开始.

It would be very useful if I undertood how to create an Julia object that represents this graph using Graphs. Its documentation lacks examples so I can't get started.

推荐答案

Julia的 界面来创建此类小图形.要手动创建上述图形，下面的代码就足够了.

Julia's Graphs package has simple_graph interface for creating such small graphs. To manually create the above mentioned graph the following code is sufficient.

using Graphs

g = simple_graph(4, is_directed=true) # simple_graph(number_of_vertices, is_directed=true|false)
add_edge!(g, 1, 2)
add_edge!(g, 1, 4)
add_edge!(g, 2, 4)
add_edge!(g, 3, 1)
add_edge!(g, 3, 2)
add_edge!(g, 4, 3)

使用手册中算法的简短示例.

Short example for using an algorithm from the manual.

test_cyclic_by_dfs(g)

这是一个基本情节.

julia> plot(g)

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