jv73                  package:ade4                  R Documentation

_K-_t_a_b_l_e_s _M_u_l_t_i-_R_e_g_i_o_n_s

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

     This data set gives physical and physico-chemical variables, fish
     species, spatial coordinates about 92 sites.

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

     data(jv73)

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

     'jv73' is a list of 6 components.

     _m_o_r_p_h_o is a data frame with 92 sites and 6 physical variables.

     _p_h_y_c_h_i is a data frame with 92 sites and 12 physico-chemical
          variables.

     _p_o_i is a data frame with 92 sites and 19 fish species.

     _x_y is a data frame with 92 sites and 2 spatial coordinates.

     _c_o_n_t_o_u_r is a data frame for mapping.

     _f_a_c._r_i_v is a factor distributing the 92 sites on 12 rivers.

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

     Verneaux, J. (1973) Cours d'eau de Franche-Comt (Massif du Jura).
     Recherches cologiques sur le rseau hydrographique du Doubs.
     Essai de biotypologie. Thse d'tat, Besanon.

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

     data(jv73)
     s.label(jv73$xy, contour = jv73$contour, incl = FALSE, 
         clab = 0.75)
     s.class(jv73$xy, jv73$fac.riv, add.p = TRUE, cell = 0,
         axese = FALSE, csta = 0, cpoi = 0, clab = 1.25)

     w <- split(jv73$morpho, jv73$fac.riv)
     w <- lapply(w, function(x) t(dudi.pca(x, scann = FALSE)))
     w <- ktab.list.dudi(w)
     kplot(sepan(w), perm = TRUE, clab.r = 0, clab.c = 2, show = FALSE)

