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. 2019 Jul 3;47(2):201–230. doi: 10.1080/02664763.2019.1637829

Table 4. The Simulation results of Example 4.2. Mean squared error (MSE) of estimates, model error (ME), mean of the number of selected covariates (NONZERO), prediction model errors (PE), mean prediction squared errors (MPSE), mean number of the false positives (FP) and false negatives (FN), the number of selected covariates among identical covariates in the model (I1) and the probability of correctly eliminated identical covariates (prob).

Scenario (n,p,k) Method ME MSE PE MPSE NONZERO FP FN I1 prob
  n=200 MLOG 0.0334 0.9496 0.0349 1.0301 7.16 0.16 0.00 0.06 0.94
  p=15 ENET 0.0426 0.9425 0.0451 1.0393 8.50 1.50 0.00 2.58 0.63
  k=7 LASSO 0.0422 0.9433 0.0453 1.0392 8.53 1.53 0.00 0.73 0.27
  n=400 MLOG 0.0222 0.9847 0.0224 1.0209 8.17 0.17 0.00 0.14 0.86
(a) p=17 ENET 0.0273 0.9819 0.0276 1.0245 9.34 1.34 0.00 1.79 0.78
  k=8 LASSO 0.0271 0.9824 0.0276 1.0257 9.39 1.39 0.00 0.72 0.29
  n=800 MLOG 0.0130 0.9845 0.0132 0.9995 10.11 0.11 0.00 0.08 0.92
  p=21 ENET 0.0156 0.9830 0.0158 1.0025 11.38 1.38 0.00 0.16 0.98
  k=10 LASSO 0.0161 0.9839 0.0165 1.0041 11.28 1.28 0.00 0.63 0.37
  n=200 MLOG 0.0064 0.9787 0.0065 0.9988 1.51 0.51 0.00 1.00 1.00
  p=15 ENET 2.4730 3.4459 2.4401 3.4150 1.58 0.74 0.16 5.88 0.00
  k=1 LASSO 0.0188 0.9758 0.0191 1.0102 2.66 1.66 0.00 1.00 1.00
  n=400 MLOG 0.0046 0.9973 0.0045 0.9948 1.50 0.50 0.00 1.00 1.00
(b) p=17 ENET 0.3049 1.2999 0.3276 1.3041 1.83 0.84 0.01 7.94 0.00
  k=1 LASSO 0.0114 0.9941 0.0113 1.0014 2.97 1.97 0.00 1.00 1.00
  n=800 MLOG 0.0021 0.9866 0.0020 0.9810 1.42 0.42 0.00 1.00 1.00
  p=21 ENET 0.0049 0.9893 0.0048 0.9831 1.51 0.51 0.00 10.00 0.00
  k=1 LASSO 0.0055 0.9858 0.0054 0.9846 2.50 1.50 0.00 1.00 1.00
  n=200 MLOG 0.0239 0.9589 0.0243 1.0003 4.35 0.35 0.00 1.00 1.00
  p=15 ENET 0.0378 0.9474 0.0387 1.0117 6.75 2.75 0.00 7.00 0.00
  k=4 LASSO 0.0388 0.9465 0.0399 1.0118 7.01 3.01 0.00 1.01 0.99
  n=400 MLOG 0.0129 0.9853 0.0131 1.0376 5.28 0.28 0.00 1.00 1.00
(c) p=17 ENET 0.0228 0.9781 0.0236 1.0489 7.92 2.92 0.00 8.00 0.00
  k=5 LASSO 0.0227 0.9782 0.0235 1.0481 8.07 3.07 0.00 1.00 1.00
  n=800 MLOG 0.0079 0.9884 0.0080 1.0080 6.25 0.25 0.00 1.00 1.00
  p=21 ENET 0.0131 0.9848 0.0133 1.0134 8.78 2.78 0.00 10.00 0.00
  k=6 LASSO 0.0135 0.9843 0.0137 1.0138 9.18 3.18 0.00 1.00 1.00