/* @(#)covsrt.c	17.1.1.1 (ES0-DMD) 01/25/02 17:26:58 */
/*===========================================================================
  Copyright (C) 1995 European Southern Observatory (ESO)
 
  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 of 
  the License, 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 program; if not, write to the Free 
  Software Foundation, Inc., 675 Massachusetss Ave, Cambridge, 
  MA 02139, USA.
 
  Corresponding concerning ESO-MIDAS should be addressed as follows:
	Internet e-mail: midas@eso.org
	Postal address: European Southern Observatory
			Data Management Division 
			Karl-Schwarzschild-Strasse 2
			D 85748 Garching bei Muenchen 
			GERMANY
===========================================================================*/

/* @(#)covsrt.c	17.1.1.1  (ESO)  01/25/02  17:26:58 */

void covsrt(covar,ma,lista,mfit)
double **covar;
int ma,lista[],mfit;
{
	int i,j;
	double swap;

	for (j=1;j<ma;j++)
		for (i=j+1;i<=ma;i++) covar[i][j]=0.0;
	for (i=1;i<mfit;i++)
		for (j=i+1;j<=mfit;j++) {
			if (lista[j] > lista[i])
				covar[lista[j]][lista[i]]=covar[i][j];
			else
				covar[lista[i]][lista[j]]=covar[i][j];
		}
	swap=covar[1][1];
	for (j=1;j<=ma;j++) {
		covar[1][j]=covar[j][j];
		covar[j][j]=0.0;
	}
	covar[lista[1]][lista[1]]=swap;
	for (j=2;j<=mfit;j++) covar[lista[j]][lista[j]]=covar[1][j];
	for (j=2;j<=ma;j++)
		for (i=1;i<=j-1;i++) covar[i][j]=covar[j][i];
}