*    This is file TRIATHLT.SPS 
TITLE 'Variable selections for triathlete data' 
DATA LIST FILE=triathlt.dat LIST 
        / T A W E Tr Tb Ts Vr Vb Vs 
VAR LABELS    T='time in minutes' 
              A='age' 
              W='weight' 
              E='years experience' 
              Tr='run training' 
              Tb='bike training' 
              Ts='swim training' 
              Vr='run oxygen consumption' 
              Vb='bike oxygen consumption' 
              Vs='swim oxygen consumption'
REGRESSION 
  /variables=T A W E Tr Tb Ts Vr Vb Vs 
  /criteria=FIN(4.0) FOUT(3.96) TOL(.0001) 
  /dependent=T /stepwise 
  /criteria=FIN(4.0) 
  /dependent=T /forward 
  /criteria=FOUT(3.96) 
  /dependent=T /backward 
FINISH 
* if Fout is not less than Fin, SPSS sets Fout=.9(Fin)