Research Article
The Economics of Community Open Source Software Projects: An Empirical Analysis of Maintenance Effort
Table 2
Summary statistics of our application sample (total of 393 applications, corresponding to 4,289 versions).
| | Variable | Symbol | Mean | Median | Min | Max | St.Dev. |
| | Administrators | | 2.13 | 2.00 | 1.00 | 15.00 | 1.68 | | Developers | | 4.38 | 1.00 | 0.00 | 132.00 | 10.31 | | Team | | 6.52 | 3.00 | 1.00 | 141.00 | 11.24 | | Versions | | 10.91 | 7.00 | 2.00 | 157.00 | 14.37 | | Methods | | 1,398.00 | 579.00 | 30.00 | 32,110.00 | 2,692.00 | | Time-Entropy | | 265.29 | 0.24 | 4.43E-5 | 65,783.00 | 3,409.80 | | Unit Effort | | 7.09 | 0.26 | 4.55E-3 | 1,737.00 | 88.90 | | SourceForge.net Ranking | | 16,354.00 | 8,349.00 | 25.00 | 86,840.00 | 19,406.00 | | Review Rate (months/version) | | 7.04 | 4.42 | 0.05 | 40.15 | 7.19 |
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