Dataset: lacrosse.dat Source: S.V. Caswell, R.G. Deivert (2002). "Lacrosse Helmet Designs and the Effects of Impact Forces", Journal of Athletic Training, 37(2):164-171. Description: Simulated data matching Summary statistics of comparison of 4 models of lacrosse helmets wrt front and rear impact. Measurements are Gadd Severity index scores. Higher values imply more severe impact. Variables/Columns Model 8 /* 1=SHC, 2=SHCAF, 3=SHCUL, 4=BUL */ Side 16 /* 1=Front, 2=Back */ Gadd severity score 23-30