spec.taper               package:stats               R Documentation

_T_a_p_e_r _a _T_i_m_e _S_e_r_i_e_s _b_y _a _C_o_s_i_n_e _B_e_l_l

_D_e_s_c_r_i_p_t_i_o_n:

     Apply a cosine-bell taper to a time series.

_U_s_a_g_e:

     spec.taper(x, p = 0.1)

_A_r_g_u_m_e_n_t_s:

       x: A univariate or multivariate time series

       p: The total proportion to be tapered, either a scalar or a
          vector of the length of the number of series.

_D_e_t_a_i_l_s:

     The cosine-bell taper is applied to the first and last 'p[i]/2'
     observations of time series 'x[, i]'.

_V_a_l_u_e:

     A new time series object.

_N_o_t_e:

     From package 'MASS'.

_A_u_t_h_o_r(_s):

     Kurt Hornik, B.D. Ripley

_S_e_e _A_l_s_o:

     'spec.pgram', 'cpgram'

