DirectedEdges
詳細
- DirectedEdges->Trueのとき,辺は有向辺である.
- DirectedEdges->Falseのとき,辺は無向辺である.
例題
すべて開く すべて閉じる例 (5)
Graph[{1 -> 2, 2 -> 3, 3 -> 1}]Graph[{1 -> 2, 2 -> 3, 3 -> 1}, DirectedEdges -> False]有向辺のCycleGraphを得る:
CycleGraph[6, DirectedEdges -> True]AdjacencyGraph[(| | | |
| - | - | - |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |), DirectedEdges -> True]GraphPlotで辺を矢印として示す:
GraphPlot[{1 -> 2, 2 -> 3, 3 -> 4, 4 -> 1, 2 -> 4, 4 -> 5, 4 -> 6}, DirectedEdges -> True]LayeredGraphPlotで辺を矢印としては示さない:
LayeredGraphPlot[{1 -> 2, 2 -> 3, 3 -> 4, 4 -> 1, 2 -> 4, 4 -> 5, 4 -> 6}, DirectedEdges -> False]スコープ (5)
DirectedEdgesはPathGraphを含む特殊グラフコンストラクタのオプションである:
PathGraph[Range[4], DirectedEdges -> True]CompleteGraph,GridGraph,ButterflyGraph:
{CompleteGraph[5, DirectedEdges -> True], GridGraph[{2, 3}, DirectedEdges -> True], ButterflyGraph[2, DirectedEdges -> True]}CycleGraph,StarGraph,WheelGraph:
{CycleGraph[7, DirectedEdges -> True], StarGraph[6, DirectedEdges -> True], WheelGraph[6, DirectedEdges -> True]}{CompleteKaryTree[3, 2, DirectedEdges -> True], KaryTree[6, 3, DirectedEdges -> True]}DirectedEdges->TrueとするとAdjacencyGraphから無向グラフが作られなくなる:
AdjacencyGraph[(| | | |
| - | - | - |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |), DirectedEdges -> True]WeightedAdjacencyGraph[(| | | | |
| - | - | - | - |
| ∞ | 1 | 2 | ∞ |
| 1 | ∞ | 1 | 1 |
| 2 | 1 | ∞ | 3 |
| ∞ | 1 | 3 | ∞ |), DirectedEdges -> True]DirectedEdgesはRandomGraphとUniformGraphDistributionに使うことができる:
RandomGraph[UniformGraphDistribution[5, 6], DirectedEdges -> True]RandomGraph[BernoulliGraphDistribution[5, 0.6], DirectedEdges -> True]デフォルトで,GraphPlotとTreePlotでは辺は線として示される:
GraphPlot[{1 -> 2, 2 -> 3, 3 -> 4, 4 -> 1, 2 -> 4}]GraphPlot[{1 -> 2, 2 -> 3, 3 -> 4, 4 -> 1, 2 -> 4}, DirectedEdges -> True]デフォルトで,LayeredGraphPlotでは辺が矢印として示される:
LayeredGraphPlot[{1 -> 2, 2 -> 3, 3 -> 4, 1 -> 4, 2 -> 5}]LayeredGraphPlot[{1 -> 2, 2 -> 3, 3 -> 4, 1 -> 4, 2 -> 5}, DirectedEdges -> False]テクニカルノート
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- グラフ描画
テキスト
Wolfram Research (2007), DirectedEdges, Wolfram言語関数, https://reference.wolfram.com/language/ref/DirectedEdges.html.
CMS
Wolfram Language. 2007. "DirectedEdges." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DirectedEdges.html.
APA
Wolfram Language. (2007). DirectedEdges. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DirectedEdges.html
BibTeX
@misc{reference.wolfram_2026_directededges, author="Wolfram Research", title="{DirectedEdges}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/DirectedEdges.html}", note=[Accessed: 08-September-2026]}
BibLaTeX
@online{reference.wolfram_2026_directededges, organization={Wolfram Research}, title={DirectedEdges}, year={2007}, url={https://reference.wolfram.com/language/ref/DirectedEdges.html}, note=[Accessed: 08-September-2026]}