Table 3.
Average number of edges (standard deviation) in the CPDAG according to the version of the PC-algorithm and the model over 300 runs with alpha = 0.02
| Directed edges (sd) | Bidirected edges (sd) | Total (sd) | Non-chronologically ordered edges (sd) | |
|---|---|---|---|---|
| Naïve PC-stable (model 1) | 0 (0.1) | 19 (0.1) | 19 (0.1) | 14 (0.1) |
| COPC-stable (model 1) | 18 (0.1) | 7 (0.1) | 25 (0.1) | 0 (0) |
| Naïve PC-stable (model 2) | 1 (0.1) | 94 (0.1) | 95 (0.1) | 53 (0.1) |
| COPC-stable (model 2) | 78 (0.1) | 52 (0.1) | 130 (0.1) | 0 (0) |
| Naïve PC-stable (model 3) | 5 (0.2) | 155 (0.1) | 160 (0.2) | 64 (0.1) |
| COPC-stable (model 3) | 92 (0.2) | 100 (0.1) | 192 (0.2) | 0 (0) |