COMDate-class          package:RDCOMClient          R Documentation

_C_l_a_s_s_e_s _f_o_r _r_e_p_r_e_s_e_n_t_i_n_g _C_O_M _V_A_R_I_A_N_T _v_a_l_u_e_s _a_s _n_u_m_b_e_r_s

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

     Several types of VARIANTs in COM represent their value as a number
     which is interpreted appropriately based on the type of the
     VARIANT. For example, a date is the number of days since January
     1, 1900, i.e. Midnight Jan 1, 1900 is 2. Similarly, a date-time
     value contains the hour, minute and second information in the
     decimal part of the number. In order to be able to associate the
     VARIANT type with the value when converting the VARIANT to R, we
     use these classes which provide the numeric value but also class
     information corresponding to the VARIANT.

_O_b_j_e_c_t_s _f_r_o_m _t_h_e _C_l_a_s_s:

     Objects can be created by calls of the form 'new("COMDate", ...)',
     etc. They are currently created implicitly in the C code that
     performs the conversion from VARIANT objects to R. In the future,
     we will provide facilities for the reverse direction.

_S_l_o_t_s:


     '._D_a_t_a': Object of class '"numeric"' this is the numeric vector in
          which the value is stored.

_E_x_t_e_n_d_s:

     Class '"numeric"', from data part. Class '"vector"', by class
     "numeric".

_M_e_t_h_o_d_s:

     No methods defined with class "COMDate" in the signature.

_A_u_t_h_o_r(_s):

     Duncan Temple Lang (duncan@wald.ucdavis.edu)

_R_e_f_e_r_e_n_c_e_s:

     <URL: http://www.omegahat.org/RDCOMClient> <URL:
     http://www.omegahat.org/RDCOMServer> <URL:
     http://www.omegahat.org/SWinTypeLibs> <URL:
     http://www.omegahat.org/SWinRegistry>

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

     '.COM'

