dates                 package:chron                 R Documentation

_G_e_n_e_r_a_t_e _D_a_t_e_s _a_n_d _T_i_m_e_s _C_o_m_p_o_n_e_n_t_s _f_r_o_m _I_n_p_u_t

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

     Create objects which represent dates or times.

_U_s_a_g_e:

     dates(x, ...)
     times(x, ...)

_A_r_g_u_m_e_n_t_s:

       x: a chron object, a character vector, or a numeric vector
          specifying time. If character, it must be in a format
          recognized by 'chron()'.  If numeric, it specifies Julian
          dates, i.e., number of days since an origin.

     ...: parameters for 'chron()'.

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

     An object of class 'dates' or 'times', depending of the function
     called.

     These functions return objects inheriting from dates and times,
     respectively.  They call 'chron()' if 'x' does not belong to any
     of the chronological classes.

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

     'chron', 'times', 'seq.dates', 'cut.dates'

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

     dts <- dates(c("02/27/92", "02/27/92", "01/14/92",
                    "02/28/92", "02/01/92"))
     dts
     # [1] 02/27/92 02/27/92 01/14/92 02/28/92 02/01/92
     class(dts)

     x <- chron(dates = c("02/27/92", "02/27/92", "01/14/92", "02/28/92"),
                times = c("23:03:20", "22:29:56", "01:03:30", "18:21:03"))
     dates(x)
     # [1] 02/27/92 02/27/92 01/14/92 02/28/92

