ordpart                package:labdsv                R Documentation

_O_r_d_i_n_a_t_i_o_n _P_a_r_t_i_t_i_o_n_i_n_g

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

     Allows users to produce clusters by visually partitioning an
     ordination with the mouse.

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

     ## S3 method for class 'pca':
     ordpartordpart(pca, ax = 1, ay = 2)
     ## S3 method for class 'pco':
     ordpartordpart(pco, ax = 1, ay = 2)
     ## S3 method for class 'nmds':
     ordpartordpart(nmds, ax = 1, ay = 2)

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

     pca: an object of class 'pca' produced by 'pca'

     pco: an object of class 'pco' produced by 'pco'

    nmds: an object of class 'nmds' produced by 'nmds'

      ax: dimension to use for X axis (must match plot)

      ay: dimension to use for Y axis (must match plot)

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

     Allows the user to draw an irregular polygon around a set of
     points with the mouse to define a cluster.  As many clusters as
     desired can be defined, and point membership in each cluster is
     color-coded as clusters are defined.   Polygon vertices are drawn
     with first mouse button; the second mouse button closes the
     polygon.  When all clusters are defined the second mouse button
     ends the routine.

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

     a vector of class memberships with attribute 'clustering'

_N_o_t_e:

     The program requires a point-in-polygon algorithm, supplied as a
     FORTRAN subroutine

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

     David W. Roberts droberts@montana.edu <URL:
     http://ecology.msu.montana.edu/labdsv>

