Skip to main content

Table 18 Descriptive statistics of the unit test case metrics (Univariate clustering - WMC)

From: A metrics suite for JUnit test code: a multiple case study on open source software

WMC

Cluster 1

Cluster 2

Cluster 3

Cluster 4

Cluster 5

Nb. Obs.

632

279

93

18

5

TLOC

Min

6

8

20

16

408

Max

1358

1745

2624

2280

4063

Mean (μ)

83.97

175.68

375.18

473.28

1224.6

Std. Dev (σ)

109.76

234.83

585.26

548.94

1422.32

Coef. of var (C v  = σ/μ)

1.307

1.337

1.56

1.16

1.161

TASSERT

Min

0

0

0

1

104

Max

528

615

1156

832

391

Mean (μ)

17.57

42.33

120.12

143.67

217.4

Std. Dev (σ)

36.70

76.55

232.38

197.31

118.50

Coef. of var (C v  = σ/μ)

2.089

1.808

1.935

1.373

0.545

TDATA

Min

0

0

0

1

19

Max

161

482

482

323

758

Mean (μ)

10.90

27.34

54.66

59

223.2

Std. Dev (σ)

16.16

52.08

94.16

93.15

270.37

Coef. of var (C v  = σ/μ)

1.483

1.905

1.723

1.579

1.211

TINVOK

Min

0

1

1

6

82

Max

154

216

401

323

516

Mean (μ)

25.67

39.88

66.95

82.39

188.4

Std. Dev (σ)

25.55

35.83

75.98

71.34

165.06

Coef. of var (C v  = σ/μ)

0.995

0.898

1.135

0.866

0.876

TNOO

Min

0

1

1

1

11

Max

82

164

242

188

148

Mean (μ)

5.76

12.92

26.55

33.5

44

Std. Dev (σ)

7.64

21.94

49.65

45.04

52.21

Coef. of var (C v  = σ/μ)

1.328

1.698

1.87

1.345

1.187