grip                 package:UsingR                 R Documentation

_E_f_f_e_c_t_s _o_f _c_r_o_s_s-_c_o_u_n_t_r_y _s_k_i-_p_o_l_e _g_r_i_p

_D_e_s_c_r_i_p_t_i_o_n:

     Simulated data set investigating effects of cross-country ski-pole
     grip.

_U_s_a_g_e:

     data(grip)

_F_o_r_m_a_t:

     A data frame with 36 observations on the following 4 variables.

     _U_B_P Measurement of upper-body power

     _p_e_r_s_o_n One of four skiers

     _g_r_i_p._t_y_p_e Either classic, modern, or integrated.

     _r_e_p_l_i_c_a_t_e a numeric vector

_D_e_t_a_i_l_s:

     Based on a study done at <URL:
     http://www.montana.edu/wwwhhd/movementscilab/> mentioned at <URL:
     http://www.xcskiworld.com/>. The study investigates the effect of
     grip type on upper body power. As this influences performance in
     races, presumably a skier would prefer the grip that provides the
     best power output.

_E_x_a_m_p_l_e_s:

     data(grip)
     ftable(xtabs(UBP ~ person + replicate + grip.type,grip))

