Research Article
An Empirical Study of Social Networks Metrics in Object-Oriented Software
Table 6
Eclipse 2.1. Spearman correlation among metrics.
| | Num. issue | Num. bug | LOCS | WMC | RFC | LCOM | CBO | Fan-in | Fan-out | Reach efficiency | Effsize | Closeness | Dwreach | Infocentrality | Size | Ties | Nweakcomp |
| Numbug | 95%** | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | LOCS | 46%** | 46%** | | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WMC | 38%** | 38%** | 84%** | — | — | — | — | — | — | — | — | — | — | — | — | — | — | RFC | 46%** | 46%** | 90%** | 89%** | — | — | — | — | — | — | — | — | — | — | — | — | — | LCOM | 34%** | 34%** | 66%** | 85%** | 74%** | — | — | — | — | — | — | — | — | — | — | — | — | CBO | 45%** | 45%** | 78%** | 61%** | 86%** | 50%** | — | — | — | — | — | — | — | — | — | — | — | Fanin | 8%** | 7%** | 7%** | 26%** | 7%** | 26%** | −14%** | — | — | — | — | — | — | — | — | — | — | Fanout | 44%** | 44%** | 77%** | 60%** | 84%** | 51%** | 95%** | −15%** | — | — | — | — | — | — | — | — | — | Reachآ efficiency | 16%** | 16%** | 29%** | 17%** | 35%** | 13%** | 48%** | −29%** | 52%** | — | — | — | — | — | — | — | — | Effsize | 41%** | 41%** | 59%** | 59%** | 68%** | 56%** | 63%** | 45%** | 66%** | 21%** | — | — | — | — | — | — | — | Closeness | 38%** | 39%** | 51%** | 45%** | 59%** | 42%** | 62%** | 14%** | 66%** | 63%** | 72% | — | — | — | — | — | — | Dwreach | 40%** | 40%** | 54%** | 48%** | 62%** | 45%** | 66%** | 15%** | 70%** | 68%** | 76%** | 96%** | — | — | — | — | — | Infocentrality | −33%** | −34%** | −45%** | −35%** | −48%** | −35%** | −53%** | −2%* | −55%** | −51%** | −59%* | −79%** | −83%** | — | — | — | — | Size | 43%** | 42%** | 63%** | 62%** | 71%** | 58%** | 66%** | 46%** | 69%** | 22%** | 98%** | 72%** | 76%** | −59%** | — | — | — | Ties | 42%** | 42%** | 64%** | 60%** | 69%** | 56%** | 65%** | 41%** | 67%** | 17%** | 17%** | 65%** | 69%** | −65%** | 94%** | — | — | Nweakcomp | −28%** | −28%** | −48%** | −41%** | −47%** | −37%** | −44%** | −23%** | −44%** | −3%** | −42%** | −31%** | −34%** | 51%** | −52%** | −71%** | — | Brokerage | 42%** | 42%** | 61%** | 60%** | 69%** | 57%** | 65%** | 45%** | 67%** | 21%** | 100%** | 73%** | 76%** | −59%** | 99%** | 91%** | — |
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**Correlation is significant at the 0.01 level. *Correlation is significant at the 0.05 level.
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