delpoints              package:splancs              R Documentation

_S_e_l_e_c_t _p_o_i_n_t_s _t_o _d_e_l_e_t_e _f_r_o_m _a _p_o_i_n_t_s _d_a_t_a _s_e_t

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

     Select points to delete from a points data set.

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

     delpoints(pts,add=F,...)

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

     pts: a points data set 

     add: if false, plot the points using `pointmap'. 

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

     A points object containing the undeleted points.

_M_E_T_H_O_D:

     Using the mouse, the user selects points on the current graphics
     device. These points are marked on the plot as they are selected.
     The function returns the remaining points as a points object.

_S_i_d_e _E_f_f_e_c_t_s:

     If `add' is false the points are plotted on the current plot
     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.

