tsp                   package:base                   R Documentation

_T_s_p _A_t_t_r_i_b_u_t_e _o_f _T_i_m_e-_S_e_r_i_e_s-_l_i_k_e _O_b_j_e_c_t_s

_D_e_s_c_r_i_p_t_i_o_n:

     `tsp' returns the `tsp' attribute (or `NULL'). It is included for
     compatibility with S version 2. `tsp<-' sets the `tsp' attribute.
     `hasTsp' ensures `x' has a `tsp' attribute, by adding one if
     needed.

_U_s_a_g_e:

     tsp(x)
     tsp(x) <- value
     hasTsp(x)

_A_r_g_u_m_e_n_t_s:

       x: a vector or matrix or univariate or multivariate time-series.

   value: a numeric vector of length 3 or `NULL'.

_D_e_t_a_i_l_s:

     The `tsp' attribute was previously described here as `c(start(x),
     end(x), frequency(x))', but this is incorrect. It gives the start
     time in time units, the end time and the frequency.

     Assignments are checked for consistency.    

     Assigning `NULL' which removes the `tsp' attribute and any `"ts"'
     class of `x'.

_S_e_e _A_l_s_o:

     `ts', `time', `start'.

