mapasp                 package:gstat                 R Documentation

_C_a_l_c_u_l_a_t_e _p_l_o_t _a_s_p_e_c_t _r_a_t_i_o _f_o_r _g_e_o_g_r_a_p_h_i_c _m_a_p_s

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

     Calculate plot aspect ratio for geographic maps

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

     mapasp(data, x = data$x, y = data$y, get.number = FALSE)

_A_r_g_u_m_e_n_t_s:

    data: data frame 

       x: x-coordinates 

       y: y-coordinates 

get.number: logical; if true the aspect value is returned else, and in
          R >= 2.0.0, "iso" is returned 

_V_a_l_u_e:

     on R version 2.0.0 or higher, returns "iso", else returns
     diff(range(y))/diff(range(x))

_S_e_e _A_l_s_o:

     image.data.frame, krige

