Names.pdMat               package:nlme               R Documentation

_N_a_m_e_s _o_f _a _p_d_M_a_t _O_b_j_e_c_t

_D_e_s_c_r_i_p_t_i_o_n:

     This method function returns the fist element of the 'Dimnames'
     attribute of 'object', which contains the column names of the
     matrix represented by 'object'.

_U_s_a_g_e:

     ## S3 method for class 'pdMat':
     Names(object, ...)
     ## S3 replacement method for class 'pdMat':
     Names(object, ...) <- value

_A_r_g_u_m_e_n_t_s:

  object: an object inheriting from class 'pdMat', representing a
          positive-definite matrix.

   value: a character vector with the replacement values for the column
          and row names of the matrix represented by 'object'. It must
          have length equal to the dimension of the matrix represented
          by 'object' and, if names have been previously assigned to
          'object', it must correspond to a permutation of the original
          names.

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

_V_a_l_u_e:

     if 'object' has a 'Dimnames' attribute then the first element of
     this attribute is returned; otherwise 'NULL'.

_S_I_D_E _E_F_F_E_C_T_S:

     On the left side of an assignment, sets the 'Dimnames' attribute
     of 'object' to 'list(value, value)'.

_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:

     'Names', 'Names.pdBlocked'

_E_x_a_m_p_l_e_s:

     pd1 <- pdSymm(~age, data = Orthodont)
     Names(pd1)

