Table 17 Descriptive statistics of the unit test case metrics (Univariate clustering - LOC)
From: A metrics suite for JUnit test code: a multiple case study on open source software
LOC | Cluster 1 | Cluster 2 | Cluster 3 | Cluster 4 | Cluster 5 | |
|---|---|---|---|---|---|---|
Nb. Obs. | 707 | 236 | 53 | 26 | 5 | |
TLOC | Min | 6 | 8 | 23 | 16 | 323 |
Max | 1620 | 2035 | 2624 | 2379 | 4063 | |
Mean (μ) | 93.92 | 193.04 | 406.76 | 437.58 | 1344.8 | |
Std. Dev (σ)) | 124.39 | 287.19 | 658.85 | 516.76 | 1407.67 | |
Coef. of var (C v  = σ/μ) | 1.324 | 1.488 | 1.62 | 1.181 | 1.047 | |
TASSERT | Min | 0 | 0 | 1 | 1 | 79 |
Max | 615 | 1058 | 1156 | 528 | 329 | |
Mean (μ) | 20.45 | 49.39 | 142.28 | 129.73 | 146.8 | |
Std. Dev (σ) | 40.98 | 107.48 | 269.95 | 153.84 | 92.81 | |
Coef. of var (C v  = σ/μ) | 2.004 | 2.176 | 1.897 | 1.186 | 0.632 | |
TDATA | Min | 0 | 0 | 0 | 0 | 9 |
Max | 482 | 326 | 482 | 323 | 758 | |
Mean (μ) | 13.11 | 30.42 | 56.93 | 47.65 | 214.8 | |
Std. Dev (σ) | 27.33 | 53.84 | 108.95 | 68.07 | 275.09 | |
Coef. of var (C v  = σ/μ) | 2.085 | 1.77 | 1.914 | 1.428 | 1.281 | |
TINVOK | Min | 0 | 2 | 1 | 2 | 17 |
Max | 175 | 327 | 401 | 138 | 516 | |
Mean (μ) | 27.08 | 44.64 | 75.60 | 58.85 | 157 | |
Std. Dev (σ) | 26.94 | 42.80 | 92.46 | 40.06 | 182.80 | |
Coef. of var (C v  = σ/μ) | 0.995 | 0.959 | 1.223 | 0.681 | 1.164 | |
TNOO | Min | 0 | 1 | 1 | 1 | 3 |
Max | 164 | 156 | 242 | 94 | 148 | |
Mean (μ) | 6.86 | 13.19 | 33.40 | 22.69 | 42.6 | |
Std. Dev (σ) | 11.68 | 23.99 | 60.92 | 23.50 | 53.45 | |
Coef. of var (C v  = σ/μ) | 1.704 | 1.82 | 1.824 | 1.035 | 1.255 | |