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. 2013 Feb 8;13(2):14. doi: 10.1167/13.2.14

Table A2.

Statistics for model comparisons. Notes: v: Number of the degrees of freedom. χ2: The weighted sum of squared errors between model predictions and real data. F test: a statistic test comparing the variance between two models with the variance inside the second model, the test value is shown in the row of the second model.

 GJ
 GD
 BK
 AB
 PB
 MY
v
 χ 2
 F test
 v
 χ 2
 F test
 v
 χ 2
 F test
 v
 χ 2
 F test
 v
 χ 2
 F test
 v
 χ 2
 F test
Model 1 247 29335 611 75913 90 1111 46 5174 35 8780 35 2433
Model 2 240 7407 101 604 20531 233 87 593 25.3 43 1880 25.1 32 3548 15.7 32 523 38.9
Model 3a 238 7325 1.34 602 10436 291 85 471 11 41 1307 9 30 519 87.5 30 450 2.4
Model 3b 230 2523 54.7 594 2321 260 81 223 22.6 37 209 57.2 26 189 11.3 30 48 Inf
DSKL model 228 606 361 592 1700 108 80 121 66.7 37 44 Inf 26 20 Inf 30 48 –