addpoints              package:splancs              R Documentation

_A_d_d _p_o_i_n_t_s _i_n_t_e_r_a_c_t_i_v_e_l_y _t_o _a _p_o_i_n_t _d_a_t_a _s_e_t

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

     Add points interactively to a point data set.

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

     addpoints(pts,plot=FALSE,quiet=FALSE)

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

     pts: A points data set. 

    plot: if true, plot the 'pts' data, using 'pointmap'. If false, or
          if 'pts' is missing, don't plot the data.  

   quiet: if true, don't print a prompt to enter points. 

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

     The points entered are displayed on the current graphics device.

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

     A points data set consisting of 'pts' and the points entered on
     the current  graphics device.

_R_e_f_e_r_e_n_c_e_s:

     Rowlingson, B. and Diggle, P. 1993 Splancs: spatial point pattern
     analysis code in S-Plus.  Computers and Geosciences, 19, 627-655;
     the original sources can be accessed at: <URL:
     http://www.maths.lancs.ac.uk/~rowlings/Splancs/>. See also Bivand,
     R. and Gebhardt, A. 2000 Implementing functions for spatial
     statistical analysis using the R language. Journal of Geographical
     Systems, 2, 307-317.

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

     'delpoints'

