nag_step_regsn (g02eec) Example Program Results
Step 1
Added variable is TS
Change in residual sum of squares = 4.7126e-01
F Statistic = 7.38
Variables in model: COD TS
Residual sum of squares = 1.0850e+00
Degrees of freedom = 17
Free variables: TKN BOD TVS
Change in residual sums of squares for free variables:
0.1175 0.0600 0.2276
Step 2
No further variables added maximum F = 1.59
Free variables: TKN BOD TVS
Change in residual sums of squares for free variables:
0.0979 0.0207 0.0217