Research Article
An Empirical Study of Social Networks Metrics in Object-Oriented Software
Table 5
Eclipse 2.1. Pearson correlation among metrics.
| | Num. issue | Num. bug | LOCS | WMC | RFC | LCOM | CBO | Fan-in | Fan-out | Reach efficiency | Eff.size | Closeness | Dwreach | Infocentrality | Size | Ties | Nweakcomp |
| Numbug | 97%** | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | LOCS | 53%** | 53%** | | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WMC | 49%** | 48%** | 57%** | — | — | — | — | — | — | — | — | — | — | — | — | — | — | RFC | 58%** | 59%** | 68%** | 92%** | — | — | — | — | — | — | — | — | — | — | — | — | — | LCOM | 32%** | 30%** | 19%** | 79%** | 62%** | — | — | — | — | — | — | — | — | — | — | — | — | CBO | 54%** | 55%** | 65%** | 41%** | 70%** | 11%** | — | — | — | — | — | — | — | — | — | — | — | Fanin | 18%** | 17%** | 62%** | 30%** | 26%** | 26%** | 4%** | — | — | — | — | — | — | — | — | — | — | Fanout | 51%** | 52%** | 62%** | 30%** | 58%** | 3%** | 94%** | −1% | — | — | — | — | — | — | — | — | — | Reachآ efficiency | 0% | 1% | 4%** | −4%** | −1% | −3%** | 9%** | −14%** | 14%** | — | — | — | — | — | — | — | — | Effsize | 30%** | 29%** | 25%** | 36%** | 40%** | 26%** | 29%** | 96%** | 26%** | −10%** | — | — | — | — | — | — | — | Closeness | −2% | −2% | −1% | −1%** | −2% | 0% | −3% | −1% | −3%* | −5%** | −2%* | — | — | — | — | — | — | Dwreach | 27%** | 27%** | 23%** | 17%** | 29%** | 4%** | 46%** | 19%** | 50%** | 44%** | 32%** | −18%** | — | — | — | — | — | Infocentrality | −2%* | −2%* | −2% | −2% | −3%* | 0% | −4%** | −1% | −5%** | −61%** | −2%* | 94%** | −25%** | — | — | — | — | Size | 32%** | 31%** | 28%** | 38%** | 42%** | 26%** | 32%** | 95%** | 29%** | −10%** | 100%** | −2% | 34%** | −3%* | — | — | — | Ties | 32%** | 31%** | 27%** | 43%** | 45%** | 37%** | 27%** | 87%** | 23%** | −9%** | 89%** | −1% | 21%** | −2% | 89%** | — | — | Nweakcomp | −23%** | −23%** | −27%** | −18%** | −28%** | −2%* | −39%** | −14%** | −40%** | −2%** | −21%** | 4%** | −15%** | 5%** | −25%** | −22%** | — | Brokerage | 16%** | 15%** | 9%** | 30%** | 26%** | 35%** | 8%** | 85%** | 3%* | −5%** | 83%** | 0% | 12%** | −1% | 82%** | 88%** | −7%** |
|
|
**Correlation is significant at the 0.01 level. *Correlation is significant at the 0.05 level.
|