Table 3.
Empirical Biases and MSEs of the parametric MDPDEs, for various α, and the two non-parametric estimates (QSN and MC) at sample size n = 50.
| Parametric MDPDE with α | Non-parametric | Parametric MDPDE with α | Non-parametric | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ϵ | 0(MLE) | 0.1 | 0.3 | 0.5 | 0.7 | 1 | QSN | MC | 0(MLE) | 0.1 | 0.3 | 0.5 | 0.7 | 1 | QSN | MC | |
| Bias | MSE | ||||||||||||||||
| 0 | μ | 0.008 | 0.012 | 0.014 | 0.020 | 0.042 | 0.096 | 0.403 | – | 0.005 | 0.007 | 0.009 | 0.012 | 0.019 | 0.026 | 0.195 | – |
| σ | −0.011 | −0.059 | −0.096 | −0.109 | −0.179 | −0.249 | −0.546 | – | 0.007 | 0.014 | 0.022 | 0.037 | 0.092 | 0.111 | 0.320 | – | |
| γ | 0.810 | 0.926 | 1.047 | 1.169 | 1.285 | 1.342 | −3.585 | −4.071 | 1.638 | 2.109 | 2.588 | 2.973 | 3.468 | 3.791 | 13.182 | 17.188 | |
| Outliers from SN(10,1,5) | |||||||||||||||||
| 0.05 | μ | 0.117 | 0.091 | 0.087 | 0.044 | 0.049 | 0.107 | 0.409 | – | 0.038 | 0.027 | 0.022 | 0.015 | 0.024 | 0.039 | 0.209 | – |
| σ | −0.295 | −0.261 | −0.152 | −0.108 | −0.177 | −0.257 | −0.485 | – | 0.110 | 0.102 | 0.075 | 0.042 | 0.099 | 0.135 | 0.268 | – | |
| γ | 1.218 | 1.146 | 1.104 | 1.002 | 1.258 | 1.368 | −3.517 | −3.904 | 3.427 | 3.194 | 3.088 | 2.985 | 3.616 | 4.083 | 12.751 | 15.841 | |
| 0.1 | μ | 0.124 | 0.102 | 0.099 | 0.055 | 0.062 | 0.159 | 0.373 | – | 0.045 | 0.032 | 0.026 | 0.019 | 0.032 | 0.055 | 0.309 | – |
| σ | −0.326 | −0.297 | −0.215 | −0.132 | −0.181 | −0.318 | −0.357 | – | 0.136 | 0.122 | 0.092 | 0.061 | 0.118 | 0.157 | 0.458 | – | |
| γ | 1.341 | 1.258 | 1.175 | 1.099 | 1.302 | 1.418 | −3.354 | −3.624 | 3.799 | 3.478 | 3.268 | 3.085 | 3.798 | 4.197 | 12.300 | 13.722 | |
| Outliers from SN(−10,1,5) | |||||||||||||||||
| 0.05 | μ | −0.124 | −0.089 | −0.073 | 0.041 | 0.072 | 0.109 | 0.363 | – | 0.048 | 0.031 | 0.023 | 0.017 | 0.026 | 0.045 | 0.167 | – |
| σ | −0.207 | −0.184 | −0.105 | −0.097 | −0.174 | −0.316 | −0.540 | – | 0.179 | 0.125 | 0.095 | 0.055 | 0.112 | 0.154 | 0.315 | – | |
| γ | 1.194 | 1.122 | 1.041 | 0.934 | 1.160 | 1.386 | −3.628 | −4.377 | 3.480 | 3.199 | 3.114 | 3.085 | 3.484 | 4.054 | 13.464 | 20.029 | |
| 0.1 | μ | −0.143 | −0.100 | −0.081 | 0.055 | 0.090 | 0.140 | 0.318 | – | 0.059 | 0.043 | 0.035 | 0.020 | 0.037 | 0.056 | 0.140 | – |
| σ | −0.280 | −0.232 | −0.142 | −0.111 | −0.186 | −0.324 | −0.534 | – | 0.244 | 0.148 | 0.101 | 0.060 | 0.122 | 0.188 | 0.309 | – | |
| γ | 1.226 | 1.148 | 1.099 | 1.001 | 1.186 | 1.465 | −3.678 | −4.487 | 3.754 | 3.397 | 3.221 | 3.115 | 3.759 | 4.259 | 13.830 | 22.768 | |
| Outliers from SN(0,5,5) | |||||||||||||||||
| 0.05 | μ | 0.083 | 0.071 | 0.060 | 0.053 | 0.078 | 0.103 | 0.409 | – | 0.039 | 0.026 | 0.018 | 0.014 | 0.020 | 0.039 | 0.206 | – |
| σ | 0.282 | 0.229 | 0.134 | −0.109 | −0.158 | −0.269 | −0.503 | – | 0.376 | 0.291 | 0.173 | 0.093 | 0.154 | 0.283 | 0.280 | – | |
| γ | 1.250 | 1.118 | 1.042 | 0.929 | 1.240 | 1.367 | −3.540 | −3.983 | 3.675 | 3.393 | 3.152 | 2.987 | 3.545 | 4.082 | 12.891 | 16.485 | |
| 0.1 | μ | 0.103 | 0.092 | 0.076 | 0.067 | 0.091 | 0.125 | 0.403 | – | 0.045 | 0.038 | 0.027 | 0.017 | 0.027 | 0.046 | 0.208 | – |
| σ | 0.309 | 0.255 | 0.166 | −0.115 | −0.209 | −0.302 | −0.441 | – | 0.402 | 0.336 | 0.249 | 0.131 | 0.214 | 0.352 | 0.234 | – | |
| γ | 1.279 | 1.143 | 1.078 | 0.996 | 1.270 | 1.382 | −3.472 | −3.835 | 3.870 | 3.495 | 3.202 | 3.046 | 3.630 | 4.356 | 12.468 | 15.237 | |
| Outliers from SN(0,1,1) | |||||||||||||||||
| 0.05 | μ | −0.065 | −0.051 | −0.041 | −0.029 | 0.076 | 0.115 | 0.402 | – | 0.096 | 0.044 | 0.027 | 0.015 | 0.022 | 0.036 | 0.196 | – |
| σ | −0.233 | −0.178 | −0.123 | −0.119 | −0.159 | −0.279 | −0.544 | – | 0.253 | 0.207 | 0.146 | 0.088 | 0.149 | 0.196 | 0.32 | – | |
| γ | 1.202 | 1.154 | 1.109 | 1.071 | 1.166 | 1.455 | −3.600 | −147 | 3.579 | 3.284 | 3.105 | 3.008 | 3.529 | 4.155 | 13.285 | 17.855 | |
| 0.1 | μ | −0.082 | −0.062 | −0.055 | −0.048 | 0.097 | 0.142 | 0.396 | – | 0.137 | 0.097 | 0.048 | 0.024 | 0.032 | 0.048 | 0.191 | – |
| σ | −0.273 | −0.214 | −0.171 | −0.145 | −0.182 | −0.319 | −0.542 | – | 0.308 | 0.234 | 0.159 | 0.093 | 0.153 | 0.251 | 0.317 | – | |
| γ | 1.254 | 1.224 | 1.124 | 1.108 | 1.199 | 1.494 | −3.617 | −4.168 | 3.822 | 3.527 | 3.266 | 3.063 | 3.764 | 4.391 | 13.386 | 18.018 | |