+++ /dev/null
-/*
- * This file is part of TISEAN
- *
- * Copyright (c) 1998-2007 Rainer Hegger, Holger Kantz, Thomas Schreiber
- *
- * TISEAN 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.
- *
- * TISEAN 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 TISEAN; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-/*Author: Rainer Hegger. Last modified: Sep 4, 1999 */
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <limits.h>
-#include <string.h>
-#include "routines/tsa.h"
-
-#define WID_STR "Estimates the crosscorrelations of two data sets\n\t\
-given as two columns of one file."
-
-char *columns=NULL,*outfile=NULL,stout=1;
-unsigned long length=ULONG_MAX,exclude=0;
-long tau=100;
-unsigned int verbosity=0xff;
-double *array1,*array2;
-char *infile=NULL;
-
-void show_options(char *progname)
-{
- what_i_do(progname,WID_STR);
- fprintf(stderr," Usage: %s [Options]\n",progname);
- fprintf(stderr," Options:\n");
- fprintf(stderr,"Everything not being a valid option will be interpreted"
- " as a possible"
- " datafile.\nIf no datafile is given stdin is read. Just - also"
- " means stdin\n");
- fprintf(stderr,"\t-l length [default is whole file]\n");
- fprintf(stderr,"\t-x # of lines to be ignored [default 0]\n");
- fprintf(stderr,"\t-c which columns (separated by commas) [default is 1,2]\n");
- fprintf(stderr,"\t-D corrlength [default is 100]\n");
- fprintf(stderr,"\t-o output_file [default is 'datafile'.crc; no -o"
- " means stdout]\n");
- fprintf(stderr,"\t-V verbosity level [default is 1]\n\t\t"
- "0='only panic messages'\n\t\t"
- "1='+ input/output messages'\n");
- fprintf(stderr,"\t-h show these options\n");
- fprintf(stderr,"\n");
- exit(0);
-}
-
-void scan_options(int argc,char **argv)
-{
- char *out;
-
- if ((out=check_option(argv,argc,'l','u')) != NULL)
- sscanf(out,"%lu",&length);
- if ((out=check_option(argv,argc,'x','u')) != NULL)
- sscanf(out,"%lu",&exclude);
- if ((out=check_option(argv,argc,'c','s')) != NULL)
- columns=out;
- if ((out=check_option(argv,argc,'D','u')) != NULL)
- sscanf(out,"%ld",&tau);
- if ((out=check_option(argv,argc,'V','u')) != NULL)
- sscanf(out,"%u",&verbosity);
- if ((out=check_option(argv,argc,'o','o')) != NULL) {
- stout=0;
- if (strlen(out) > 0)
- outfile=out;
- }
-}
-
-double corr(long i)
-{
- unsigned long count=0;
- long j,hi;
- double c=0.0;
-
- for (j=0;j<length;j++) {
- hi=j+i;
- if ((hi >= 0) && (hi < length)) {
- count++;
- c += array1[j]*array2[hi];
- }
- }
- return c/(double)count;
-}
-
-int main(int argc,char** argv)
-{
- char stdi=0;
- long i;
- unsigned int dummy=2;
- FILE *fout=NULL;
- double **both;
- double av1,var1,av2,var2;
-
- if (scan_help(argc,argv))
- show_options(argv[0]);
-
- scan_options(argc,argv);
-#ifndef OMIT_WHAT_I_DO
- if (verbosity&VER_INPUT)
- what_i_do(argv[0],WID_STR);
-#endif
-
- infile=search_datafile(argc,argv,0L,verbosity);
- if (infile == NULL)
- stdi=1;
-
- if (outfile == NULL) {
- if (!stdi) {
- check_alloc(outfile=(char*)calloc(strlen(infile)+5,(size_t)1));
- strcpy(outfile,infile);
- strcat(outfile,".ccr");
- }
- else {
- check_alloc(outfile=(char*)calloc((size_t)10,(size_t)1));
- strcpy(outfile,"stdin.ccr");
- }
- }
- if (!stout)
- test_outfile(outfile);
-
- if (columns == NULL)
- both=(double**)get_multi_series(infile,&length,exclude,&dummy,"",(char)1,
- verbosity);
- else
- both=(double**)get_multi_series(infile,&length,exclude,&dummy,columns,
- (char)1,verbosity);
-
- array1=both[0];
- array2=both[1];
-
- if (tau >= length)
- tau=length-1;
-
- variance(array1,length,&av1,&var1);
- variance(array2,length,&av2,&var2);
-
- for (i=0;i<length;i++) {
- array1[i] -= av1;
- array2[i] -= av2;
- }
-
- if (!stout) {
- fout=fopen(outfile,"w");
- if (verbosity&VER_INPUT)
- fprintf(stderr,"Opened %s for writing\n",outfile);
- fprintf(fout,"# average of first comp.=%e\n",av1);
- fprintf(fout,"# standard deviation of first comp.=%e\n",var1);
- fprintf(fout,"# average of sec. comp.=%e\n",av2);
- fprintf(fout,"# standard deviation of sec. comp.=%e\n",var2);
- }
- else {
- if (verbosity&VER_INPUT)
- fprintf(stderr,"Writing to stdout\n");
- fprintf(stdout,"# average of first comp.=%e\n",av1);
- fprintf(stdout,"# standard deviation of first comp.=%e\n",var1);
- fprintf(stdout,"# average of sec. comp.=%e\n",av2);
- fprintf(stdout,"# standard deviation of sec. comp.=%e\n",var2);
- }
-
- for (i= -tau;i<=tau;i++)
- if (!stout) {
- fprintf(fout,"%ld %e\n",i,corr(i)/var1/var2);
- fflush(fout);
- }
- else {
- fprintf(stdout,"%ld %e\n",i,corr(i)/var1/var2);
- fflush(stdout);
- }
- if (!stout)
- fclose(fout);
-
- return 0;
-}
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