## Copyright (C) 1995, 1996, 1997 Friedrich Leisch ## ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 2, or (at your option) ## any later version. ## ## This program is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with this file. If not, write to the Free Software Foundation, ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ## usage: run_count (x, n) ## ## Counts the upward runs in the columns of x of length 1, 2, ... n-1 ## and >= n. ## Author: FL <Friedrich.Leisch@ci.tuwien.ac.at> ## Description: Count upward runs function retval = run_count (x, n) [xr, xc] = size(x); tmp = zeros (xr,xc); retval = zeros (n, xc); for j = 1 : xc run = 1; count = 1; for k = 2 : xr if x(k, j) < x(k-1, j) tmp(run, j) = count; run = run + 1; count = 0; endif count = count + 1; endfor tmp(run, j) = count; endfor for k=1 : (n-1) retval(k, :) = sum (tmp == k); endfor retval(n, :) = sum (tmp >= n); endfunction

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