StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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63 lines
1.5 KiB
63 lines
1.5 KiB
# elementary-circuits-directed-graph
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An implementation of the Johnson's circuit finding algorithm [1].
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[1] Donald B. Johnson, Finding all the elementary circuits of a directed
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graph, SIAM Journal on Computing, 1975.
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## Example
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```javascript
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var findCircuits = require("elementary-circuits-directed-graph");
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// V4 V2
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// +-<---o---<---o---<--+
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// | | |
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// o V0 ^ o V3
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// | V1| |
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// +------>------o--->--+
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var adjacencyList = [
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[1],
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[2, 3],
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[4],
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[2],
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[0]
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]
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console.log(findCircuits(adjacencyList))
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// returns [[0, 1, 2, 4, 0], [0, 1, 3, 2, 4, 0]]
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```
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Optionally, one can define a callback to manage the result.
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```javascript
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// reusing the same adjacencyList as before
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var counter = 0;
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function increment() {
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counter += 1;
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}
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findCircuits(adjacencyList, increment);
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console.log(counter)
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// return 2
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```
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This is especially useful if there are too many elementary circuits
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to store in memory. Using a callback, they can be saved to disk instead.
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## Install
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npm install elementary-circuits-directed-graph
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## API
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### `require("elementary-circuits-directed-graph")(adjacencyList, callback)`
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Finds all the elementary circuits of a directed graph using
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* `adjacencyList` is an array of lists representing the directed edges of the graph
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* `callback` is an optional function that will be called each time an elementary circuit is found.
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**Returns** An array of arrays representing the elementary circuits if no callback was defined.
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## Credits
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(c) 2018 Antoine Roy-Gobeil. MIT License.
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