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:

     `real' creates a double precision vector of the specified length.
     Each element of the vector is equal to `0'.

     `as.real' attempts to coerce its argument to be of real type.

     `is.real' returns `TRUE' or `FALSE' depending on whether its
     argument is of real type or not.

_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.

_N_o_t_e:

     R has no single precision data type. All real numbers are stored
     in double precision format.

