spatial              package:bootstrap              R Documentation

_S_p_a_t_i_a_l _T_e_s_t _D_a_t_a

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

     Twenty-six neurologically impaired children have each taken two
     tests of spatial perception, called "A" and "B".

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

     data(spatial)

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

     A data frame with 26 observations on the following 2 variables.

     _A a numeric vector

     _B a numeric vector

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

     In the book this is used as a test data set for bootstrapping 
     confidence intervals.

_S_o_u_r_c_e:

     Efron, B. and Tibshirani, R. (1993) An Introduction to the
     Bootstrap.  Chapman and Hall, New York, London.

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

     str(spatial)
     plot(spatial) 
     abline(0,1, col="red2")

