mpoint                package:splancs                R Documentation

_O_v_e_r_l_a_y _a _n_u_m_b_e_r _o_f _p_o_i_n_t _p_a_t_t_e_r_n_s

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

     Overlay a number of point patterns.

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

     mpoint(...,cpch,add=F,type="p")

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

     ...: At least one argument consisting of a points data set must be
          specified. 

    cpch: A vector of characters for plotting symbols 

     add: if `add' is `TRUE' then overlay on an existing plot 

    type: plot data as points if `type="p"', lines if `type="l"'

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

     `mpoint' enables several point or polygon datasets to be
     overlayed. The plot region is calculated so that all the specified
     datasets fit in the region. The parameter `cpch' specifies the
     characters to use for each set of points. The default `cpch'
     consists of the numbers 1 to 9 followed by the uppercase  letters
     A to Z. If `cpch' is shorter than the number of point sets to
     plot, then it is repeated.

_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:

     `pointmap'

