glsStruct                package:nlme                R Documentation

_G_e_n_e_r_a_l_i_z_e_d _L_e_a_s_t _S_q_u_a_r_e_s _S_t_r_u_c_t_u_r_e

_D_e_s_c_r_i_p_t_i_o_n:

     A generalized least squares structure is a list of model
     components representing different sets of parameters in the linear
      model. A 'glsStruct'  may contain 'corStruct' and 'varFunc'
     objects. 'NULL' arguments are not included in the 'glsStruct'
     list.

_U_s_a_g_e:

     glsStruct(corStruct, varStruct)

_A_r_g_u_m_e_n_t_s:

corStruct: an optional 'corStruct' object, representing a correlation
          structure. Default is 'NULL'.

varStruct: an optional 'varFunc' object, representing a variance
          function structure. Default is 'NULL'.

_V_a_l_u_e:

     a list of model variance-covariance components determining the
     parameters to be estimated for the associated linear model.

_A_u_t_h_o_r(_s):

     Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates
     bates@stat.wisc.edu

_S_e_e _A_l_s_o:

     'gls', 'corClasses', 'varFunc'

_E_x_a_m_p_l_e_s:

     gls1 <- glsStruct(corAR1(), varPower())

