uves_physmod_necregr.c

00001 /*                                                                              *
00002  *   This file is part of the ESO UVES Pipeline                                 *
00003  *   Copyright (C) 2004,2005 European Southern Observatory                      *
00004  *                                                                              *
00005  *   This library is free software; you can redistribute it and/or modify       *
00006  *   it under the terms of the GNU General Public License as published by       *
00007  *   the Free Software Foundation; either version 2 of the License, or          *
00008  *   (at your option) any later version.                                        *
00009  *                                                                              *
00010  *   This program is distributed in the hope that it will be useful,            *
00011  *   but WITHOUT ANY WARRANTY; without even the implied warranty of             *
00012  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
00013  *   GNU General Public License for more details.                               *
00014  *                                                                              *
00015  *   You should have received a copy of the GNU General Public License          *
00016  *   along with this program; if not, write to the Free Software                *
00017  *   Foundation, 51 Franklin St, Fifth Floor, Boston, MA  02111-1307  USA       *
00018  *                                                                              */
00019 
00020 /*
00021  * $Author: amodigli $
00022  * $Date: 2007/06/06 08:17:33 $
00023  * $Revision: 1.5 $
00024  * $Name: uves-3_9_0 $
00025  * $Log: uves_physmod_necregr.c,v $
00026  * Revision 1.5  2007/06/06 08:17:33  amodigli
00027  * replace tab with 4 spaces
00028  *
00029  * Revision 1.4  2006/11/06 15:19:41  jmlarsen
00030  * Removed unused include directives
00031  *
00032  * Revision 1.3  2006/08/23 09:33:03  jmlarsen
00033  * Renamed local variables shadowing POSIX reserved names
00034  *
00035  * Revision 1.2  2006/06/20 10:56:56  amodigli
00036  * cleaned output, added units
00037  *
00038  * Revision 1.1  2006/02/03 07:46:30  jmlarsen
00039  * Moved recipe implementations to ./uves directory
00040  *
00041  * Revision 1.8  2006/01/20 10:05:49  jmlarsen
00042  * Inserted missing doxygen end tag
00043  *
00044  * Revision 1.7  2006/01/16 08:01:57  amodigli
00045  *
00046  * Added stability check
00047  *
00048  * Revision 1.6  2006/01/05 14:29:59  jmlarsen
00049  * Removed newline characters from output strings
00050  *
00051  * Revision 1.5  2005/12/20 08:11:44  jmlarsen
00052  * Added CVS  entry
00053  *
00054  */
00055 
00056 /*----------------------------------------------------------------------------*/
00060 /*----------------------------------------------------------------------------*/
00063 #ifdef HAVE_CONFIG_H
00064 #  include <config.h>
00065 #endif
00066 
00067 /*-----------------------------------------------------------------------------
00068                                 Includes
00069  -----------------------------------------------------------------------------*/
00070 #include <uves_physmod_necregr.h>
00071 
00072 #include <uves_error.h>
00073 #include <uves_msg.h>
00074 
00075 /*-----------------------------------------------------------------------------
00076                                 Defines
00077  -----------------------------------------------------------------------------*/
00078 /*-----------------------------------------------------------------------------
00079                             Functions prototypes
00080  ----------------------------------------------------------------------------*/
00081 /*-----------------------------------------------------------------------------
00082                             Static variables
00083  -----------------------------------------------------------------------------*/
00084 
00085 /*-----------------------------------------------------------------------------
00086                             Functions code
00087  -----------------------------------------------------------------------------*/
00088 
00089 /*----------------------------------------------------------------------------*/
00102 /*----------------------------------------------------------------------------*/
00103 
00104 int
00105 uves_physmod_necregr(cpl_table** ord_tbl, cpl_table** reg_tbl)
00106 
00107 {
00108 
00109   int  order=0;
00110   int  nb_order=0;
00111   int  present_order=0;
00112   int  order_nb=0;
00113   int  row=0;
00114   int ncol=0;
00115   int  nrow=0;
00116 
00117   int  selected=0;
00118   int  null=0;
00119   int ord_min=0;
00120   int ord_max=0;
00121 
00122   double    x=0., y=0., cnt=0., sx=0., sy=0., sx2=0., sxy=0., sy2=0.;
00123   double    det=0., a=0., b=0., rms=0.;
00124 
00125   uves_msg_debug("start %s",__func__);
00126   nrow=cpl_table_get_nrow(*ord_tbl);
00127   ncol=cpl_table_get_ncol(*ord_tbl);
00128 
00129   uves_msg_debug("nrow=%d ncol=%d",nrow,ncol);
00130   ord_min=cpl_table_get_column_min(*ord_tbl,"ORDER");
00131   ord_max=cpl_table_get_column_max(*ord_tbl,"ORDER");
00132   nb_order=ord_max-ord_min+1;
00133   *reg_tbl=cpl_table_new(100);
00134   cpl_table_new_column(*reg_tbl,"ORDER",CPL_TYPE_INT);
00135   cpl_table_new_column(*reg_tbl,"RMS",CPL_TYPE_DOUBLE);
00136   
00137   row = 0;
00138   selected=1;
00139 
00140   for (order=0; order<nb_order; order++) {
00141 
00142     cnt=0., sx=0., sy=0., sx2=0., sxy=0., sy2 = 0.;
00143     order_nb=cpl_table_get_int(*ord_tbl,"ORDER",row,&null);
00144 
00145     present_order = order_nb;
00146       
00147     while (present_order == order_nb) {
00148 
00149       if (selected) {
00150 
00151     x=cpl_table_get_double(*ord_tbl,"X",row,&null);
00152     y=cpl_table_get_double(*ord_tbl,"Y",row,&null);
00153 
00154     cnt += 1., sx += x, sy += y, sx2 += x*x, sy2 += y*y, sxy += x*y;
00155       }
00156 
00157       if (row >= (nrow-1)) break;
00158       row++;
00159       present_order=cpl_table_get_int(*ord_tbl,"ORDER",row,&null);
00160 
00161     }
00162       
00163 
00164     if (cnt >= 3) {
00165       det = cnt*sx2 - sx*sx;
00166       a   = (sy*sx2 - sx*sxy)/det;
00167       b   = (cnt*sxy - sx*sy)/det;
00168       rms = (sy2 - a*a*cnt - 2.*b*a*sx - b*b*sx2)/cnt;
00169       if (rms < 0. && rms > -0.05) rms = 0.;
00170       rms = sqrt(rms);
00171     }
00172     else    rms = 99999.;
00173 
00174     cpl_table_set_int(*reg_tbl,"ORDER",order,order_nb);
00175     cpl_table_set_double(*reg_tbl,"RMS",order,rms);
00176 
00177   }
00178   cpl_table_erase_invalid_rows(*reg_tbl);
00179   uves_msg_debug("end %s",__func__);
00180   return 0;
00181 }

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