c Copyright (C) 2008 VZLU Prague, a.s., Czech Republic c c Author: Jaroslav Hajek <highegg@gmail.com> c c This file is part of OctGPR. c c OctGPR is free software; you can redistribute it and/or modify c it under the terms of the GNU General Public License as published by c the Free Software Foundation; either version 2 of the License, or c (at your option) any later version. c c This program is distributed in the hope that it will be useful, c but WITHOUT ANY WARRANTY; without even the implied warranty of c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the c GNU General Public License for more details. c c You should have received a copy of the GNU General Public License c along with this software; see the file COPYING. If not, see c <http://www.gnu.org/licenses/>. c double precision function dwdis2(ndim,theta,x1,x2) c purpose: assistant function. Calculates the weighted squared c distance between spatial points x1 and x2 c arguments: c ndim (in) number of dimensions c theta (in) weights c x1,x2 (in) input spatial points c return value: weighted distance c integer ndim double precision theta(*),x1(*),x2(*) integer k dwdis2 = 0 do k = 1,ndim dwdis2 = dwdis2 + (theta(k)*(x1(k)-x2(k)))**2 end do end function

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