addExpiry              package:quantmod              R Documentation

_A_d_d _C_o_n_t_r_a_c_t _E_x_p_i_r_a_t_i_o_n _B_a_r_s _t_o _C_h_a_r_t

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

     Apply options or futures expiration vertical bars to current
     chart.

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

     addExpiry(type = "options", lty = "dotted", col = "blue")

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

    type: options or futures expiration 

     lty: type of lines to draw 

     col: color of lines 

_D_e_t_a_i_l_s:

     See options.expiry and futures.expiry in 'quantmod' for details
     and limitations.

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

     Expiration lines will be drawn at appropriate dates. A chibTA
     object will be returned silently.

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

     Jeffrey A. Ryan

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

     'addTA'

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

     ## Not run: 
     addExpiry()
     ## End(Not run)

