matpesos              package:climatol              R Documentation

_I_n_t_e_r-_s_t_a_t_i_o_n _w_e_i_g_h_t _m_a_t_r_i_x _c_o_m_p_u_t_a_t_i_o_n

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

     Computation of the inter-station weight matrix that will be used
     by 'datest' to estimate each station series from all other
     stations.

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

       matpesos(wa=5, wz=.001, verb=TRUE)

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

      wa: Shape parameter of the weighting function '1/(1+d^2/wa)',
          where d stands for distance. Low values (1-10) increase the
          weight of nearby stations, while high values (>1000) take in
          account also the far stations influence. Do 'wa=0' if you
          want an unweighted average of all the stations.

      wz: Scale parameter of the vertical coordinate 'Z'. The default
          value assumes that 'X' and 'Y' are expressed in km, while 'Z'
          is expressed in m.  Can be used to change the 'Z' weight in
          inter-station distance computations.

    verb: If 'TRUE', progress indications will be shown in the
          terminal.

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

     Object 'est.w' is created, containing the computed weight matrix.

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

     'depudm'

