Research Article
An Empirical Study on Downstream Dependency Package Groups in Software Packaging Ecosystems
Table 8
Spearman correlation coefficients for features of downstream dependency packages and the development of the focal package in DDG (top 20% members).
| | Features of downstream dependency packages and size of DDG (correlation coefficient (p-value)) | Features of downstream dependency packages and number of releases of focal package (correlation coefficient (p-value)) | | Features | Cargo | CPAN | RubyGems | Cargo | CPAN | RubyGems |
| | Average age | 0.04 (0.32) | 0.09 (0.02) | 0.07 (0.00) | 0.07 (0.11) | 0.18 (8.56e-07) | 0.05 (0.04) | | Average number of stars | 0.10 (0.03) | 0.26 (9.61e-13) | 0.19 (1.02e-13) | 0.03 (0.44) | 0.10 (0.00) | 0.02 (0.52) | | Average number of forks | 0.08 (0.09) | 0.29 (1.86e-15) | 0.22 (7.69e-17) | 0.00 (0.92) | 0.05 (0.19) | 0.07 (0.01) | | Average rank | 0.11 (0.01) | 0.27 (3.94e-13) | 0.04 (0.12) | 0.16 (0.00) | 0.08 (0.32) | 0.09 (0.00) | | Average number of keywords | 0.02 (0.65) | 0.36 (4.68e-24) | 0.02 (0.53) | 0.09 (0.03) | 0.03 (0.47) | 0.02 (0.56) | | Average number of dependent repositories | 0.21 (2.09e-05) | 0.43 (2.83e-33) | 0.31 (9.75e-34) | 0.03 (0.56) | 0.13 (0.00) | 0.02 (0.53) | | Average number of releases | 0.05 (0.23) | 0.07 (0.07) | 0.01 (0.59) | 0.05 (0.29) | 0.06 (0.10) | 0.07 (0.01) | | Average number of dependent packages | 0.17 (7.11e-05) | 0.36 (5.31e-23) | 0.24 (1.30e-19) | 0.12 (0.01) | 0.01 (0.85) | 0.03 (0.21) |
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The correlation coefficient is not less than 0.20, highlighting a higher correlation using bold font.
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