michelson package:MASS R Documentation _M_i_c_h_e_l_s_o_n'_s _S_p_e_e_d _o_f _L_i_g_h_t _D_a_t_a _D_e_s_c_r_i_p_t_i_o_n: Measurements of the speed of light in air, made between 5th June and 2nd July, 1879. The data consists of five experiments, each consisting of 20 consecutive runs. The response is the speed of light in km/s, less 299000. The currently accepted value, on this scale of measurement, is 734.5. _U_s_a_g_e: michelson _F_o_r_m_a_t: The data frame contains the following components: '_E_x_p_t' The experiment number, from 1 to 5. '_R_u_n' The run number within each experiment. '_S_p_e_e_d' Speed-of-light measurement. _S_o_u_r_c_e: A.J. Weekes (1986) _A Genstat Primer._ Edward Arnold. S. M. Stigler (1977) Do robust estimators work with real data? _Annals of Statistics_ *5*, 1055-1098. _R_e_f_e_r_e_n_c_e_s: Venables, W. N. and Ripley, B. D. (2002) _Modern Applied Statistics with S._ Fourth edition. Springer.