Data from a Simulated Motorcycle Accident SUMMARY: The mcycle data frame has 133 rows and 2 columns. In an experiment to test crash helmets, a series of measurements of head acceleration after a simulated motorcycle crash were recorded. DATA DESCRIPTION: This data frame contains the following columns: times: The time in milliseconds since impact. accel: The recorded head acceleration (in g). SOURCE: The data were obtained from Silverman, B.W. (1985) Some aspects of the spline smoothing approach to non-parametric curve fitting. Journal of the Royal Statistical Society, B, 47, 1-52. OTHER REFERENCES: Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press. Venables, W.N. and Ripley, B.D. (1994) Modern Applied Statistics with S-Plus. Springer-Verlag. SEE ALSO: