

point {sgeostat}                             R Documentation

_P_o_i_n_t _O_b_j_e_c_t

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

     Create an object of class point from a data frame.

     An object of class point represents the observed data
     of a spatial process. This includes the spatial loca-
     tion of sampling sites and the values observed at those
     sites. A point object is stored as a data frame. The
     data frame must contain one column for the X coordinate
     and one column for the Y coordinate of each point, as
     well as any number of columns representing data
     observed at the points.

_U_s_a_g_e_:

     point(data.frame, x='x', y='y')

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

data.frame: a data frame containing the x and y coordinates
          for each point and the variables observed at each
          point

       x: the name of the column in data.frame that contains
          the x coordinate

       y: the name of the column in data.frame that contains
          the y coordinate

_V_a_l_u_e_:

     A point object:

       x: vector of x coordinates

       y: vector of ycoordinates

    var1: vector of the first variable

     ...: ...

    varm: vector of the mth variable

_R_e_f_e_r_e_n_c_e_s_:

     http://www.gis.iastate.edu/SGeoStat/homepage.html

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

     `point'

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

     data(maas)
     maas.point <- point(maas)

