Table 2 The AEs and MSE obtained from various estimation methods for the NLxEx distribution.
From: The flexible Lomax-G family with estimation methods and applications in hydrology and biomedicine
n | ML | LS | WLS | CVM | AD | RTAD |
---|---|---|---|---|---|---|
Set 1: \((\alpha =0.5, \beta =2, \lambda =1)\) | AEs MSE | AEs MSE | AEs MSE | AEs MSE | AEs MSE | AEs MSE |
50 | 0.837 0.028 | 0.875 0.325 | 0.903 0.374 | 0.796 0.401 | 0.815 0.380 | 0.689 0.356 |
 | 2.524 0.285 | 2.853 0.751 | 2.732 0.846 | 2.591 0.816 | 2.479 0.776 | 2.668 0.511 |
 | 1.525 0.251 | 1.743 0.379 | 1.882 0.442 | 1.767 0.393 | 1.612 0.376 | 1.587 0.441 |
100 | 0.721 0.021 | 0.753 0.301 | 0.844 0.314 | 0.653 0.362 | 0.741 0.332 | 0.648 0.321 |
 | 2.479 0.168 | 2.568 0.552 | 2.513 0.716 | 2.271 0.703 | 2.432 0.712 | 2.524 0.462 |
 | 1.413 0.203 | 1.565 0.311 | 1.573 0.387 | 1.615 0.341 | 1.564 0.265 | 1.462 0.326 |
200 | 0.613 0.013 | 0.647 0.213 | 0.765 0.282 | 0.613 0.311 | 0.687 0.247 | 0.587 0.272 |
 | 2.255 0.056 | 2.462 0.413 | 2.437 0.512 | 2.235 0.614 | 2.271 0.531 | 2.353 0.334 |
 | 1.218 0.114 | 1.466 0.287 | 1.385 0.266 | 1.496 0.233 | 1.473 0.235 | 1.422 0.231 |
500 | 0.535 0.009 | 0.581 0.139 | 0.602 0.235 | 0.564 0.257 | 0.568 0.215 | 0.565 0.244 |
 | 2.105 0.028 | 2.272 0.303 | 2.261 0.318 | 2.163 0.463 | 2.175 0.354 | 2.121 0.318 |
 | 1.016 0.033 | 1.239 0.166 | 1.253 0.155 | 1.307 0.154 | 1.310 0.156 | 1.272 0.184 |
750 | 0.502 0.003 | 0.554 0.105 | 0.548 0.211 | 0.544 0.201 | 0.551 0.209 | 0.554 0.213 |
 | 2.013 0.021 | 2.221 0.294 | 2.218 0.312 | 2.125 0.418 | 2.144 0.337 | 2.118 0.302 |
 | 1.011 0.028 | 1.215 0.152 | 1.237 0.150 | 1.271 0.134 | 1.260 0.139 | 1.240 0.162 |
Set 2: \((\alpha =2, \beta =1.2, \lambda =0.5)\) | ||||||
---|---|---|---|---|---|---|
50 | 2.495 0.197 | 2.643 0.373 | 2.766 0.401 | 2.594 0.421 | 2.683 0.461 | 2.476 0.382 |
 | 1.571 0.053 | 1.764 0.417 | 1.674 0.441 | 1.595 0.427 | 1.677 0.501 | 1.496 0.319 |
 | 0.732 0.049 | 0.795 0.443 | 0.746 0.395 | 0.788 0.367 | 0.774 0.402 | 0.663 0.347 |
100 | 2.383 0.163 | 2.571 0.351 | 2.643 0.327 | 2.455 0.322 | 2.532 0.317 | 2.433 0.261 |
 | 1.559 0.044 | 1.604 0.383 | 1.528 0.356 | 1.452 0.354 | 1.517 0.428 | 1.417 0.286 |
 | 0.652 0.034 | 0.647 0.351 | 0.682 0.254 | 0.619 0.278 | 0.645 0.324 | 0.611 0.301 |
200 | 2.216 0.134 | 2.414 0.217 | 2.439 0.225 | 2.307 0.236 | 2.371 0.270 | 2.313 0.211 |
 | 1.462 0.031 | 1.473 0.262 | 1.339 0.264 | 1.327 0.251 | 1.391 0.285 | 1.353 0.265 |
 | 0.591 0.022 | 0.586 0.259 | 0.637 0.182 | 0.595 0.206 | 0.593 0.243 | 0.585 0.273 |
500 | 2.036 0.021 | 2.227 0.185 | 2.238 0.146 | 2.219 0.135 | 2.196 0.148 | 2.188 0.134 |
 | 1.210 0.016 | 1.282 0.146 | 1.248 0.215 | 1.252 0.160 | 1.246 0.126 | 1.247 0.117 |
 | 0.543 0.017 | 0.535 0.158 | 0.547 0.133 | 0.556 0.173 | 0.537 0.122 | 0.552 0.121 |
750 | 2.019 0.011 | 2.215 0.151 | 2.215 0.134 | 2.211 0.124 | 2.158 0.135 | 2.154 0.125 |
 | 1.202 0.013 | 1.261 0.124 | 1.234 0.203 | 1.231 0.141 | 1.225 0.117 | 1.231 0.113 |
 | 0.511 0.015 | 0.521 0.127 | 0.535 0.127 | 0.534 0.152 | 0.525 0.119 | 0.541 0.115 |
Set 3: \((\alpha =2.5, \beta =1, \lambda =1.5)\) | ||||||
---|---|---|---|---|---|---|
50 | 2.768 0.286 | 2.794 0.478 | 2.813 0.482 | 2.698 0.388 | 2.779 0.417 | 2.676 0.446 |
 | 1.453 0.187 | 1.687 0.366 | 1.417 0.422 | 1.523 0.391 | 1.479 0.461 | 1.398 0.367 |
 | 1.759 0.267 | 1.862 0.487 | 1.773 0.502 | 1.786 0.385 | 1.769 0.415 | 1.642 0.396 |
100 | 2.641 0.213 | 2.712 0.422 | 2.725 0.376 | 2.646 0.352 | 2.724 0.386 | 2.642 0.379 |
 | 1.364 0.069 | 1.455 0.323 | 1.354 0.315 | 1.436 0.343 | 1.414 0.380 | 1.354 0.351 |
 | 1.682 0.124 | 1.751 0.394 | 1.704 0.412 | 1.742 0.311 | 1.667 0.346 | 1.601 0.332 |
200 | 2.569 0.116 | 2.612 0.341 | 2.611 0.311 | 2.587 0.276 | 2.665 0.243 | 2.574 0.323 |
 | 1.217 0.056 | 1.351 0.212 | 1.248 0.246 | 1.363 0.224 | 1.334 0.321 | 1.263 0.216 |
 | 1.534 0.108 | 1.682 0.335 | 1.636 0.317 | 1.653 0.242 | 1.631 0.263 | 1.574 0.215 |
500 | 2.545 0.014 | 2.532 0.206 | 2.553 0.243 | 2.542 0.246 | 2.533 0.223 | 2.522 0.216 |
 | 1.125 0.033 | 1.168 0.149 | 1.154 0.126 | 1.143 0.172 | 1.141 0.230 | 1.160 0.164 |
 | 1.521 0.037 | 1.537 0.174 | 1.540 0.215 | 1.539 0.196 | 1.523 0.154 | 1.521 0.119 |
750 | 2.510 0.011 | 2.516 0.201 | 2.530 0.236 | 2.533 0.231 | 2.521 0.210 | 2.517 0.201 |
 | 1.018 0.013 | 1.147 0.127 | 1.146 0.117 | 1.138 0.133 | 1.124 0.224 | 1.141 0.115 |
 | 1.510 0.025 | 1.525 0.153 | 1.531 0.204 | 1.527 0.162 | 1.518 0.140 | 1.518 0.111 |