Research Article
Multivariate Joint Probability Function of Earthquake Ground Motion Prediction Equations Based on Vine Copula Approach
Table 1
Five-dimensional normal copula and t copula.
| Normal | Par. | Kendall’s | t copula | Par. | Kendall’s |
| | 0.8755 | 0.6789 | | 0.8819 | 0.6785 | (0.0040) | (0.0050) |
| | 0.3624 | 0.2361 | | 0.3705 | 0.2416 | (0.0200) | (0.0210) |
| | 0.1639 | 0.1048 | | 0.1623 | 0.1038 | (0.0230) | (0.0240) |
| | 0.0282 | 0.0180 | | 0.0207 | 0.0132 | (0.0240) | (0.0250) |
| | 0.4516 | 0.2983 | | 0.4500 | 0.2972 | (0.018) | (0.0190) |
| | 0.2560 | 0.1648 | | 0.2464 | 0.1585 | (0.0220) | (0.0230) |
| | 0.1077 | 0.0687 | | 0.0919 | 0.0586 | (0.0240) | (0.0250) |
| | 0.7813 | 0.5709 | | 0.7754 | 0.5649 | (0.0080) | (0.0080) |
| | 0.5905 | 0.4021 | | 0.5776 | 0.3920 | (0.0140) | (0.0150) |
| | 0.8111 | 0.6023 | | 0.8069 | 0.5977 | (0.0070) | (0.0070) | | | | | 20.6782 | | (3.6160) |
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The subscripts 1, 2, 3, 4, and 5 denote PSAs at 0.1, 0.2, 1, 2, and 4 sec, respectively. Statistical significance at the 1% level. |