dispbars               package:plotrix               R Documentation

_D_i_s_p_e_r_s_i_o_n _b_a_r_s

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

     Display line/cap bars at specified points on a plot representing
     measures of dispersion.

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

      dispbars(x,y,ulim,llim=ulim,arrow.cap=0.02,arrow.gap=NA,...)

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

     x,y: x and y position of the centers of the bars

ulim,llim: The extent of the dispersion measures.

arrow.cap: The width of the cap at the outer end of each bar as a
          proportion of the width of the plot.

arrow.gap: The gap to leave at the inner end of each bar. Defaults to
          two thirds of the height of a capital "O".

     ...: additional arguments passed to 'arrows'.

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

     If 'arrow.gap' is greater than or equal to the upper or lower
     limit for a bar, 'segments' is used to draw the upper and lower
     caps with no bars to avoid zero length arrows.

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

     nil

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

     Jim Lemon

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

     'arrows','segments'

