monde84                 package:ade4                 R Documentation

_G_l_o_b_a_l _S_t_a_t_e _o_f _t_h_e _W_o_r_l_d _i_n _1_9_8_4

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

     The 'monde84' data frame gives five demographic variables  for 48
     countries in the world.

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

     data(monde84)

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

     This data frame contains the following columns:

   _p_i_b : Gross Domestic Product

   _c_r_o_i_p_o_p : Growth of the population

   _m_o_r_t_a : Infant Mortality

   _a_n_a_l : Literacy Rate

   _s_c_o_l : Percentage of children in full-time education

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

     Geze, F. and Coll., eds. (1984) _L'tat du Monde 1984 : annuaire
     conomique et gopolitique mondial_. La Dcouverte, Paris.

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

     data(monde84)
     X <- cbind.data.frame(lpib = log(monde84$pib), monde84$croipop)
     Y <- cbind.data.frame(lmorta = log(monde84$morta), 
         lanal = log(monde84$anal + 1), rscol = sqrt(100 - monde84$scol))
     pcaY <- dudi.pca(Y, scan = FALSE)
     pcaiv1 <- pcaiv(pcaY, X0 <- scale(X), scan = FALSE)
     sum(cor(pcaiv1$l1[,1], Y0 <- scale(Y))^2)
     pcaiv1$eig[1] #the same

