Research Article

More on the Ridge Parameter Estimators for the Gamma Ridge Regression Model: Simulation and Applications

Table 14

Comparison of GRR and ML estimators for the nitrogen dioxide data.

EstimatorsEMSE

MLE0.14971−0.071260.03091−0.00034−0.000731.8690
k1−0.00058−0.063390.03186−0.00041−0.000400.0019
k20.14969−0.071260.03091−0.00034−0.000731.8684
k30.05145−0.069180.03177−0.00031−0.001160.2282
k40.000020.000140.001540.004370.000170.0284
k50.01371−0.068280.03209−0.00030−0.001300.0196
k60.05387−0.069230.03175−0.00031−0.001150.2495
k7−0.00068−0.061810.03174−0.00044−0.000070.0020
k80.01371−0.068280.03209−0.00030−0.001300.0196
k9−0.00068−0.061810.03174−0.00044−0.000070.0020
k10−0.00069−0.061310.03170−0.000450.000030.0020
k110.05389−0.069230.03175−0.00031−0.001150.2496
k120.05389−0.069230.03175−0.00031−0.001150.2496
k13−0.00060−0.063240.03185−0.00041−0.000370.0019
k140.02876−0.068670.03197−0.00031−0.001250.0747
k150.00072−0.066910.03212−0.00033−0.001120.0020
k160.02164−0.068500.03203−0.00031−0.001280.0440
k170.14967−0.071260.03091−0.00034−0.000731.8681
k180.00005−0.000330.006790.003730.000670.0279
k19−0.00068−0.061810.03174−0.00044−0.000070.0020
k20−0.00001−0.009530.02357−0.000370.004660.0211
k21−0.00014−0.017200.02637−0.000840.005590.0164
k22−0.00029−0.065320.03201−0.00036−0.000800.0018
k23−0.00031−0.026660.02818−0.000960.005410.0115
k240.000020.000090.002590.004630.000260.0283
k250.08588−0.069910.03147−0.00032−0.001010.6226
k26−0.00068−0.061810.03174−0.00044−0.000070.0020
k270.10006−0.070210.03135−0.00032−0.000950.8415
k28−0.00065−0.047090.03050−0.000740.002730.0042
k29−0.00007−0.065930.03205−0.00035−0.000930.0019
k300.00695−0.068010.03214−0.00031−0.001300.0070
k310.01068−0.068180.03211−0.00031−0.001310.0131
k32−0.00074−0.058800.03150−0.000510.000530.0022
k330.00408−0.067790.03215−0.00031−0.001280.0039
k34−0.00003−0.066020.03206−0.00035−0.000940.0019
k350.00185−0.067410.03215−0.00032−0.001220.0025
k360.04719−0.069090.03181−0.00031−0.001180.1929
k370.04535−0.069050.03182−0.00031−0.001180.1786
k380.000000.00000−0.00004−0.000140.000000.0284
k39−0.00014−0.017200.02637−0.000840.005590.0164
k400.08894−0.069980.03144−0.00032−0.001000.6670