v.autocorr(1)		      Grass User's Manual		 v.autocorr(1)



NNAAMMEE
       vv..aauuttooccoorrrr   -  Calculate  spatial autocorrelation statistics for GRASS
       vector file.
       _(_G_R_A_S_S _V_e_c_t_o_r _P_r_o_g_r_a_m_)

SSYYNNOOPPSSIISS
       vv..aauuttooccoorrrr
       vv..aauuttooccoorrrr hheellpp
       vv..aauuttooccoorrrr [--cchhnnqqww] vveecctt==_n_a_m_e [oouuttppuutt==_n_a_m_e]

DDEESSCCRRIIPPTTIIOONN
       _v_._a_u_t_o_c_o_r_r uses a labeled binary vector file (vect=_n_a_m_e)  to  calculate
       spatial autocorrelation statistics for areas.  The output may either be
       printed to the screen or saved to a file (vect=_n_a_m_e).



   FFllaaggss::
       --cc     Print the connectivity matrix.

       --ww     Print the weight matrix (a  re-expression  of  the  connectivity
	      matrix).

       --nn     Suppress	calculation of statistics. Useful when used with --cc or
	      --ww.

       --hh     Do calculations for hypothesis testing. Warning: this is	inten-
	      sive!

       --qq     Quiet. Cut out the chatter.




   PPaarraammeetteerrss::
       vveecctt==_n_a_m_e
	      Name  of	a  labeled  binary vector file.  The categories values
	      must be numeric.

       oouuttppuutt==_n_a_m_e
	      Name of the output file.



       _v_._a_u_t_o_c_o_r_r can be run either non-interactively or  interactively.   The
       program will be run non-interactively if the user specifies the name of
       a labeled binary vector file.


       Alternately, the user can simply type vv..aauuttooccoorrrr on the	command  line,
       without program arguments.  In this case, the user will be prompted for
       parameter values using the standard GRASS parser interface described in
       the manual entry for _p_a_r_s_e_r.

SSEEEE AALLSSOO
       _s_._v_o_r_o_n_o_i

       _v_._s_t_a_t_s

       _p_a_r_s_e_r



       Daniel  A.  Griffith,  (1987).	_S_p_a_t_i_a_l  _A_u_t_o_c_o_r_r_e_l_a_t_i_o_n   _- _A _P_r_i_m_e_r_.
       Association of American Geographers.
       _R_A_N_L_I_B_._C

       a library of C routines for random number generation compiled and writ-
       ten by Barry W. Brown and James Lovato of the M.D. Anderson Cancer Cen-
       ter at the University of Texas, was adapted for use by this program.

BBUUGGSS
       The --ww flag does not work yet.
       This program only works for fully labeled vector files (with sequential
       categories beginning with 1). I don't know what it will do in any other
       situation.
       Please send all bug fixes and comments to the author.

AAUUTTHHOORR
       James Darrell McCauley, Agricultural Engineering, Purdue University

       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_2_/_0_1_/_2_5 _0_5_:_4_5_:_3_5 _$



GRASS 5.0							 v.autocorr(1)
