Table 6 Analysis of differences in forward selection regression process results according to GAM for BYD Lake.

From: Integrated analytical framework for identifying factors related to the ecological degradation of lakes

No.

Model structure

Deviance explained

AIC

GCV

R-sq.(adj)

1

WL

67.4%

47.99

0.2196

0.654

2

WL+TP

77.8%

37.95

0.1669

0.751

3

WL+TP+AT

79.8%

37.77

0.1688

0.761

4

WL+TP+AT+AT*TP

79.8%

37.77

0.1688

0.761

5

WL+TP+AT+WL*AT

88.4%

29.70

0.1502

0.829

6

WL+TP+AT+WL*TP

98.7%

-19.93

0.1074

0.952

  1. (1) Higher explained deviance or R-sq.(adj) values indicate the better fit of a model. Smaller AIC and GCV values also indicate the better fit of a model
  2. (2) The sample size was only sufficient for one interaction term to be tested each time
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