mathmarks                package:SIN                R Documentation

_M_a_t_h_e_m_a_t_i_c_s _m_a_r_k_s

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

     Examination marks of 88 students in the five subjects:

        *  Mechanics,

        *  Vectors,

        *  Algebra,

        *  Analysis,

        *  Statistics.

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

     data(mathmarks)

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

     A list providing a summary of the data. The list contains:

       'mathmarks$means'   :  the mean vector,
       'mathmarks$stddev'  :  the vector of standard deviations,
       'mathmarks$corr'    :  the correlation matrix, and
       'mathmarks$n'       :  the sample size.

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

     Mechanics and Vectors were closed book examinations. Algebra,
     Analysis and Statistics were open book examinations.

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

     Mardia, K.V., Kent, J.T. & Bibby, J.M. (1979) _Multivariate
     analysis_. London: Academic Press. (See pp.3-4). 

      Whittaker, J. (1990) _Graphical models in applied multivariate
     statistics_. Chichester: Wiley. (See Ch. 1.1).

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

     data(mathmarks)
     mathmarks$means
     mathmarks$stddev
     mathmarks$corr
     mathmarks$n

