Model

Weeks

R2

Prediction equation

I

26

0.22

1.469 + 0.349 * Fix_developerT

52

0.20

1.274 + 0.346 * Fix_developerT

II

26

0.97

2.053 + 0.017 * Fix_developerT + (−0.169) * Dy_commitT + 0.86 * Dy_issueT + 0.27 * Dy_forkT

52

0.98

0.933 + 0.14 * Fix_developerT + 0.14 * Fix_followerT + 0.04 * Dy_commitT + 0.954 * Dy_forkT