spRbind-methods           package:maptools           R Documentation

_r_b_i_n_d _f_o_r _s_p_a_t_i_a_l _o_b_j_e_c_t_s

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

     'spRbind' provides rbind-like methods for Spatial*DataFrame
     objects

_M_e_t_h_o_d_s:



     _o_b_j = "_S_p_a_t_i_a_l_P_o_i_n_t_s", _x = "_S_p_a_t_i_a_l_P_o_i_n_t_s" rbind two SpatialPoints
          objects

     _o_b_j = "_S_p_a_t_i_a_l_P_o_i_n_t_s_D_a_t_a_F_r_a_m_e", _x = "_S_p_a_t_i_a_l_P_o_i_n_t_s_D_a_t_a_F_r_a_m_e" rbind
          two SpatialPointsDataFrame objects

     _o_b_j = "_S_p_a_t_i_a_l_L_i_n_e_s", _x = "_S_p_a_t_i_a_l_L_i_n_e_s" rbind two SpatialLines
          objects

     _o_b_j = "_S_p_a_t_i_a_l_L_i_n_e_s_D_a_t_a_F_r_a_m_e", _x = "_S_p_a_t_i_a_l_L_i_n_e_s_D_a_t_a_F_r_a_m_e" rbind
          two SpatialLinesDataFrame objects

     _o_b_j = "_S_p_a_t_i_a_l_P_o_l_y_g_o_n_s", _x = "_S_p_a_t_i_a_l_P_o_l_y_g_o_n_s" rbind two
          SpatialPolygons objects

     _o_b_j = "_S_p_a_t_i_a_l_P_o_l_y_g_o_n_s_D_a_t_a_F_r_a_m_e", _x = "_S_p_a_t_i_a_l_P_o_l_y_g_o_n_s_D_a_t_a_F_r_a_m_e" 
          rbind two SpatialPolygonsDataFrame objects

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

     Roger Bivand

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

     'spChFIDs-methods', 'spCbind-methods'

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

     xx <- readShapePoly(system.file("shapes/sids.shp", package="maptools")[1], 
       IDvar="FIPSNO", proj4string=CRS("+proj=longlat +ellps=clrk66"))
     summary(xx)
     xx$FIPSNO
     xx1 <- xx[xx$CNTY_ID < 1982,]
     xx2 <- xx[xx$CNTY_ID >= 1982,]
     xx3 <- spRbind(xx2, xx1)
     summary(xx3)
     xx3$FIPSNO

