Research Article
Reliability Modeling for Systems with Multiple Degradation Processes Using Inverse Gaussian Process and Copulas
Table 5
Goodness-of-Fit for the four copulas.
| Copula | Parameter Estimation | AIC | Kendall’s tau | Spearman’s rho | Ranking |
| Gumbel | 1.5150 | | | | 2 | Frank | 3.9127 | | | | 1 | Clayton | 0.3544 | | | | 6 | Gaussian | 0.4880 | | | | 3 | Joe | 1.7663 | | | | 4 | Amh | 0.8235 | | | | 5 |
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