concatxy              package:spatstat              R Documentation

_C_o_n_c_a_t_e_n_a_t_e _x,_y _C_o_o_r_d_i_n_a_t_e _V_e_c_t_o_r_s

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

     Concatenate any number of pairs of `x' and `y' coordinate vectors.

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

       concatxy(...)

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

     ...: Any number of arguments, each of which is a structure
          containing elements `x' and `y'. 

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

     This function can be used to superimpose two or more point
     patterns of unmarked points (but see also `superimpose' which is
     recommended). 

     It assumes that each of the arguments in `...' is a structure
     containing (at least) the elements `x' and `y'. It concatenates
     all the `x' elements into a vector `x', and similarly for `y', and
     returns these concatenated vectors.

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

     A list with two components `x' and `y', which are the
     concatenations of all the corresponding `x' and `y' vectors in the
     argument list.

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

     Adrian Baddeley adrian@maths.uwa.edu.au <URL:
     http://www.maths.uwa.edu.au/~adrian/> and Rolf Turner
     rolf@math.unb.ca <URL: http://www.math.unb.ca/~rolf>

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

     `superimpose', `quadscheme'

_E_x_a_m_p_l_e_s:


       library(spatstat)

       dat <- runifrect(30)
       xy <- list(x=runif(10),y=runif(10))
       new <- concatxy(dat, xy)

