real                  package:base                  R Documentation

_R_e_a_l _V_e_c_t_o_r_s

_D_e_s_c_r_i_p_t_i_o_n:

     These functions are the same as their 'double' equivalents and are
     provided for backwards compatibility only.

_U_s_a_g_e:

     real(length = 0)
     as.real(x, ...)
     is.real(x)

_A_r_g_u_m_e_n_t_s:

  length: desired length.

       x: object to be coerced or tested.

     ...: further arguments passed to or from other methods.

_D_e_t_a_i_l_s:

     'as.real' is a generic function, but S3 methods must be written
     for 'as.double'.  

     'as.real' and 'is.real' are primitive, so positional matching is
     used and any names of supplied arguments are ignored.  This may
     not be true of methods for 'as.real'.