Results for: 10139, Factovisors
Main parameters
| Parameter | C | C++ | Pascal | Total |
| Number of submissions (AC, WA, or PE) | 396 | 1198 | 120 | 1714 |
| Number of authors | 120 | 367 | 41 | 528 |
| First submission correct | 71 | 201 | 21 | 293 |
| Last submission correct | 92 | 268 | 22 | 382 |
| Average number of trials per author | 3.3 | 3.26 | 2.93 | 3.25 |
| Average number of trials per author (excluding submissions after a correct one) | 2.04 | 2.08 | 1.62 | 2.03 |
| Average number of trials to correct submission | 1.66 | 1.72 | 1.05 | 1.67 |
| Number of different equivalence classes | 79 | 202 | 23 | 277 |
| Number of different score functions | 67 | 154 | 14 | 206 |
| Number of different equivalence classes in authors' first submissions | 37 | 94 | 15 | 130 |
| Number of different score functions in authors' first submissions | 33 | 73 | 7 | 97 |
Parameters of the C/C++ submissions
| Parameter | All, 1>pfd (N=452) | Correct (N=268) | 0.1>=pfd>0 (N=104) | 1>pfd>0.1 (N=80) | |||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | ||
| FileSize | 1400 | 589 | 1380 | 630 | 1550 | 530 | 1250 | 465 | |
| LOC | 64.7 | 25.4 | 64.9 | 27 | 67.8 | 22.6 | 59.9 | 22.7 | |
| #Comment lines | 4.99 | 5.59 | 4.81 | 5.06 | 5.19 | 4.76 | 5.35 | 7.89 | |
| Halstead, Volume | 1960 | 788 | 1950 | 826 | 2130 | 698 | 1740 | 718 | |
| McCabe, CC | 18.4 | 6.34 | 18.2 | 6.34 | 20 | 5.94 | 16.8 | 6.5 | |
Correlations between parameters of correct C/C++ submissions
| # Comment | Halstead | McCabe | |||||||
| Filesize | LOC | lines | Volume | CC | |||||
| FileSize | 1 | 0.79 | 0.628 | 0.823 | 0.72 | ||||
| LOC | 0.79 | 1 | 0.347 | 0.849 | 0.829 | ||||
| #Comment lines | 0.628 | 0.347 | 1 | 0.335 | 0.292 | ||||
| Halstead, Volume | 0.823 | 0.849 | 0.335 | 1 | 0.862 | ||||
| McCabe, CC | 0.72 | 0.829 | 0.292 | 0.862 | 1 | ||||
Correlations between parameters and pfd/defects of C/C++ submissions
| # Comment | Halstead | McCabe | |||||||
| Filesize | LOC | lines | Volume | CC | |||||
| PFD | -0.075 | -0.0518 | -0.0319 | -0.0906 | -0.0941 | ||||
| Defects | 0.0388 | 0.00133 | 0.0185 | 0.000357 | 0.00339 | ||||
Effect of diversity
 | Average reliability improvement for 0.001<=pfd<=0.01: 21.6 |
Effect of Language diversity
 | Average reliability improvement for 0.001<=pfd<=0.01 (in the range where all exist): C/C: 20.2 C/C++: 20.7 C/Pascal: 264 |
 | Average reliability improvement for 0.001<=pfd<=0.01 (in the range where all exist): C++/C: 20.7 C++/C++: 19.3 C++/Pascal: 379 |
 | Average reliability improvement for 0.001<=pfd<=0.01 (in the range where all exist): Pascal/C: 264 Pascal/C++: 379 Pascal/Pascal: 43 |
Outliers
The following programs have been excluded for analysis in the sections on parameters of C/C++ submissions, because they consist of a large lookup table: 496000, 496436, 496470, 496966, 503495, 602478, 602480, 602481, 625177, 629836, 629857, 705964, 705965, 911547, 1011151, 1413580, 1413584, 1413619, 1413630, 1413632, 1413636, 1413638, 1421969, 1491526, 1536119, 1536121, 1586113, 1586114, 1588490, 1604354, 1604367, 1604370, 1604372, 1673987, 1673999, 1826199, 2345753, 2346474, 2370933, 2465886, 2465919, 2465929, 2465956, 2465958, 2465964, 2466506, 2466843, 2470912, 2470918, 2470930, 2471788.Page automatically generated on Mon Jan 22 13:26:53 2007