NAG Library Manual, Mark 29
Interfaces:  FL   CL   CPP   AD 

NAG FL Interface Introduction
Example description
 G02EEF Example Program Results

 Step  1
 Added variable is TS 
 Change in residual sum of squares =   0.4713E+00
 F Statistic =    7.38

 Variables in model: COD TS 

 Residual sum of squares =    0.1085E+01
 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