

rtps(funfits)                                R Documentation

_R_o_b_u_s_t _t_h_i_n _p_l_a_t_e _s_p_l_i_n_e _r_e_g_r_e_s_s_i_o_n

_U_s_a_g_e_:

     rtps(..., max.iter=20, acc=10 * .Machine$single.eps^0.5, finish=F,
     conv.method="lambda")

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

     ...: Arguments for tps function. Matrix of independent
          variables x and vector of dependent variables Y
          are required.

max.iter: Maximum number of iterations to convergence.

     acc: Accuracy of convergence criteria.

  finish: Finish the iterations with two iterations of the
          bisquare.

conv.method: Method of convergence, lambda or weights.

_V_a_l_u_e_:

     tps object.

_R_e_f_e_r_e_n_c_e_s_:

     See Nonparametric Regression and Generalized Linear
     Models by Green and Silverman.

     See Additive Models by Hastie and Tibshirani.

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

     tps, summary.tps

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

     #2-d example
     rtps(ozone$x, ozone$y) -> fit # fitting a surface to ozone measurements,
     using iterative reweighted least squares.
     plot(fit) # plots fit and residuals

