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:

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

