sbox                 package:splancs                 R Documentation

_G_e_n_e_r_a_t_e _a _b_o_x _s_u_r_r_o_u_n_d_i_n_g _a _p_o_i_n_t _o_b_j_e_c_t

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

     Generate a box surrounding a point object

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

     sbox(pts, xfrac = .1, yfrac = .1)

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

     pts: A points data set 

   xfrac: The fraction of the width of the point pattern by which the
          box will surround the point pattern to the left and right. 

   yfrac: The fraction of the height of the point pattern by which the
          box will  surround the point pattern to the top and bottom.  

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

     A points data set of four points giving the coordinates of the
     surrounding box

_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:

     `bbox'

