REM Selected variables from: MARS 7 Results; 13 Basis Functions

WHPsleep MARS model

BF10 = max(0, KMWORK - 220);
 BF11 = max(0, 220 - KMWORK);
 BF12 = max(0, CLOUD - 90);
 BF13 = max(0, 90 - CLOUD);
 BF14 = max(0, PTSDW1 - 2.05895E-007);
 BF15 = max(0, HAVMIL - 0.546945);

 Y = 44.4394 + 23.2397 * BF1 - 21.2335 * BF2 + 17.3259 * BF3 
             + 0.547449 * BF4 - 0.945494 * BF6 - 3.75244 * BF7 
             + 0.000463875 * BF8 - 0.0186581 * BF10 
             - 0.0777058 * BF11 + 0.936573 * BF12 
             + 0.0571326 * BF13 + 0.0686294 * BF14 
             + 0.0170859 * BF15;

 MODEL WHPSLEEP = BF1 BF2 BF3 BF4 BF6 BF7 BF8 BF10 BF11 BF12 BF13 
                  BF14 BF15;