logLik.reStruct             package:nlme             R Documentation

_C_a_l_c_u_l_a_t_e _r_e_S_t_r_u_c_t _L_o_g-_L_i_k_e_l_i_h_o_o_d

_D_e_s_c_r_i_p_t_i_o_n:

     Calculates the log-likelihood, or restricted log-likelihood, of
     the Gaussian linear mixed-effects model represented by 'object'
     and 'conLin' (assuming spherical within-group covariance
     structure), evaluated at 'coef(object)'. The 'settings' attribute
     of 'object' determines whether the log-likelihood, or the
     restricted log-likelihood, is to be calculated. The computational
     methods are  described in Bates and Pinheiro (1998).

_U_s_a_g_e:

     ## S3 method for class 'reStruct':
     logLik(object, conLin, ...)

_A_r_g_u_m_e_n_t_s:

  object: an object inheriting from class 'reStruct', representing a
          random effects structure and consisting of a list of 'pdMat'
          objects.

  conLin: a condensed linear model object, consisting of a list with
          components '"Xy"', corresponding to a regression matrix ('X')
          combined with a response vector ('y'), and '"logLik"',
          corresponding to the log-likelihood of the underlying model.

     ...: some methods for this generic require additional arguments. 
          None are used in this method.

_V_a_l_u_e:

     the log-likelihood, or restricted log-likelihood, of linear
     mixed-effects model represented by 'object' and 'conLin',
     evaluated at 'coef{object}'.

_A_u_t_h_o_r(_s):

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

_R_e_f_e_r_e_n_c_e_s:

     Bates, D.M. and Pinheiro, J.C. (1998) "Computational methods for
     multilevel models" available in PostScript or PDF formats at
     http://franz.stat.wisc.edu/pub/NLME/

_S_e_e _A_l_s_o:

     'reStruct', 'pdMat'

