平滑效应项

估计自由度

参考自由度

F

P-value

方差解释率

调整判定系数：R²

stage

3.84

4

88.74

<2e−16

5.98

−0.0199

weeks

3.647

4

88.83

<2e−16

6.34

−0.0199

Requriement_chg

6

5

2

0.0106

3.8

0.0271

loc

1

1

67.01

<2e−16

4.88

0.0048

complexity

1

1

54.03

4e−15

4.12

0.0014

Tc_num

8.559

9

284.5

<2e−16

21.4

0.0104

Stmt_cvg

4

3

41.43

4e−9

2.91

−0.021

S_c_tc_num

5

3

210.1

<2e−16

13.2

0.021

Branch_c_t_n

3.879

4

236.8

<2e−16

18.6

0.0611

Branch_cvg

1.98

2

17.98

<2e−16

1.37

−0.021

Tc_num_loc

3.278

4

1.645

0.00029

21.7

0.174

Tc_num_comple

3.219

4

1.525

4.71e−07

20.1

0.161