Pagerank change return type to NodeMap

[dizzyi]

Development Workflow

• make format
• make test
• make lint

Bug Related

#21

changed return type of pagerank and pagerank_impl to NodeMap<f64>, and some minor changes.

Example

fn pagerank_example() {
    use graphina::core::types::Digraph;

    use graphina::centrality::algorithms::pagerank;

    let mut graph = Digraph::new();
    let nodes = (0..5).map(|i| graph.add_node(i)).collect::<Vec<_>>();
    let edges = [(0, 1, 1.0), (0, 2, 1.0), (1, 3, 1.0)];
    for (s, d, w) in edges {
        graph.add_edge(nodes[s], nodes[d], w);
    }

    let centrality = pagerank(&graph, 0.85, 1000);
    let expected = [0.14161, 0.20180, 0.20180, 0.31315, 0.14161];
    for (i, f) in expected.into_iter().enumerate() {
        assert!((centrality[&nodes[i]] - f).abs() < 1e-5)
    }
}

[codecov]

Codecov Report

❌ Patch coverage is 86.66667% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.32%. Comparing base (bd6a0cc) to head (9c04336).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/centrality/algorithms.rs	86.66%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #23      +/-   ##
==========================================
+ Coverage   81.08%   81.32%   +0.24%     
==========================================
  Files          12       12              
  Lines        1882     1880       -2     
==========================================
+ Hits         1526     1529       +3     
+ Misses        356      351       -5     

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