veuvage                 package:ade4                 R Documentation

_E_x_a_m_p_l_e _f_o_r _C_e_n_t_r_i_n_g _i_n _P_C_A

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

     The data come from the INSEE (National Institute of Statistics and
     Economical Studies).  It is an array of widower percentages in
     relation with the age and the socioprofessional category.

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

     data(veuvage)

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

     'veuvage' is a list of 2 components.

     _t_a_b is a data frame with 37 rows (widowers) 6 columns
          (socio-professional categories)

     _a_g_e is a vector of the ages of the 37 widowers. 

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

     The columns contain the socioprofessional categories:
      1- Farmers, 2- Craftsmen, 3- Executives and higher intellectual
     professions,
      4- Intermediate Professions, 5- Others white-collar workers and
     6- Manual workers.

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

     unknown

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

     data(veuvage)
     par(mfrow = c(3,2))
     for (j in 1:6) plot(veuvage$age, veuvage$tab[,j],
         xlab = "ge", ylab = "pourcentage de veufs",
         type = "b", main = names(veuvage$tab)[j])

