VarCorr                 package:lme4                 R Documentation

_E_x_t_r_a_c_t _v_a_r_i_a_n_c_e _a_n_d _c_o_r_r_e_l_a_t_i_o_n _c_o_m_p_o_n_e_n_t_s

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

     Extract the estimated variances, standard deviations, and
     correlations of the random-effects terms in a linear mixed-effects
     model, of class 'lme', or a generalized linear mixed-effects
     model. When appropriate, the within-group error variance and
     standard deviation are also calculated.

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

     an object of class 'VarCorr'.

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

     'lme', 'GLMM', 'VarCorr-class'

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

     data(bdf)
     fm <- lme(langPOST ~ IQ.ver.cen + avg.IQ.ver.cen, data = bdf,
               random = ~ IQ.ver.cen | schoolNR)
     VarCorr(fm)

