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xi_rppi_tree.c
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#include <malloc.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define PI 3.1415926535897932384626433832795029
void FO_error(char *filename)
{
printf("Cannot open file %s\n",filename);
exit(0);
}
double *vector(int nl,int nh)
{
double *v;
v=(double *)malloc((unsigned) (nh-nl+1)*sizeof(double));
if (!v) {printf("allocation failure in vector()\n"); exit(1);}
return v-nl;
}
void free_vector(double *v,int nl,int nh)
{
free((char*) (v+nl));
}
int *ivector(int nl,int nh)
{
int *v;
v=(int *)malloc((unsigned) (nh-nl+1)*sizeof(int));
if (!v) {printf("allocation failure in ivector()\n"); exit(1);}
return v-nl;
}
void free_ivector(int *v,int nl,int nh)
{
free((char*) (v+nl));
}
double **matrix(nrl,nrh,ncl,nch)
int nrl,nrh,ncl,nch;
{
int i;
double **m;
m=(double **) malloc((unsigned) (nrh-nrl+1)*sizeof(double*));
if (!m) {printf("allocation failure 1 in matrix()\n"); exit(1);}
m -= nrl;
for(i=nrl;i<=nrh;i++) {
m[i]=(double *) malloc((unsigned) (nch-ncl+1)*sizeof(double));
if (!m[i]) {printf("allocation failure 2 in matrix()\n"); exit(1);}
m[i] -= ncl;
}
return m;
}
int **imatrix(nrl,nrh,ncl,nch)
int nrl,nrh,ncl,nch;
{
int i;
int **m;
m=(int **) malloc((unsigned) (nrh-nrl+1)*sizeof(int*));
if (!m) {printf("allocation failure 1 in matrix()\n"); exit(1);}
m -= nrl;
for(i=nrl;i<=nrh;i++) {
m[i]=(int *) malloc((unsigned) (nch-ncl+1)*sizeof(int));
if (!m[i]) {printf("allocation failure 2 in matrix()\n"); exit(1);}
m[i] -= ncl;
}
return m;
}
void free_matrix(m,nrl,nrh,ncl,nch)
double **m;
int nrl,nrh,ncl,nch;
{
int i;
for(i=nrh;i>=nrl;i--) free((char*) (m[i]+ncl));
free((char*) (m+nrl));
}
void free_imatrix(m,nrl,nrh,ncl,nch)
int **m;
int nrl,nrh,ncl,nch;
{
int i;
for(i=nrh;i>=nrl;i--) free((char*) (m[i]+ncl));
free((char*) (m+nrl));
}
void helpmessage(char *com)
{
printf("\nGiven the simulation output, calculate the correlation function.\n");
printf("Format of the input file: No. #Particle x y z?\n\n"
"Usage: %s inputfile boxsize N rmin rmax [#bin]\n"
" boxsize - boxsize of the simulation (h^-1Mpc)\n"
" N - the first N halos in the input file (0 means all halos)\n"
" rmin - outer radius of the first bin\n"
" rmax - outer radius of the last bin\n"
" #bin - number of bins (logarithmically uniform spaced) [defalt=10]\n\n",com);
printf("Output Format: r_outer r_ave xi xi_err Npair Npspair\n"
" r_outer, r_ave - outer and volumn-weighted radius of each bin\n"
" xi, xi_err - correlation function with errorbars\n"
" Npair, Npspair - numbers of pairs and poisson pairs in each bin\n\n");
exit(0);
}
void PairCount(double *rp_cen, double *pi_cen,
double **Npair,
double rp_min, double rp_max, int Nbin_rp,
double pi_min, double pi_max, int Nbin_pi,
double *x1, double *y1, double *z1, int N1,
double *x2, double *y2, double *z2, int N2,
int auto_opt,
double Lx, double Ly, double Lz, int **cellNEI, int **galIND_1,int **galIND_2, int N3, int N4, int N5)
{
int i,ic,j,jc,j0,ii,k;
double drp,mu,dpi,rp,s_pi,d1x,d1y,d1z,d2x,d2y,d2z,s,l,lx,ly,lz,sx,sy,sz;
double rp_lo,rp_hi,navg1,navg2;
double S,V,factor;
if(auto_opt!=0 && N1!=N2) {
printf("PairCount> Error, N1!=N2 for option auto\n");
exit(0);
}
// drp=log10(pow(10,rp_max)/pow(10,rp_min))/Nbin_rp;/*Bin width perpendicular to los*/
drp=(rp_max-rp_min)/Nbin_rp;
dpi =(pi_max-pi_min)/Nbin_pi;/*Bin width line of sight*/
// for(i=1;i<=Nbin_rp;i++) rp_cen[i]=pow(10,(rp_min+(i-0.5)*drp));
for(i=1;i<=Nbin_rp;i++) rp_cen[i]=rp_min+(i-0.5)*drp;
for(i=1;i<=Nbin_pi;i++) pi_cen[i]=pi_min+(i-0.5)*dpi;
for(i=1;i<=Nbin_rp;i++){
for(j=1;j<=Nbin_pi;j++){
Npair[i][j]=0.0;
}
}
for(ii=1;ii<=N3;ii++) {
if(galIND_1[ii][1]==0) continue;
for(k=1;k<=27;k++){
if(cellNEI[ii][k]==0) break;
if(galIND_2[cellNEI[ii][k]][1]==0) continue;
if(auto_opt==1 && cellNEI[ii][k]<ii) continue;
if(auto_opt==1 && cellNEI[ii][k]==ii){
if(galIND_2[ii][1]==galIND_2[ii][2]) continue;
for(i=galIND_1[ii][1];i<=galIND_1[ii][2];i++){
for(j=(i+1);j<=galIND_2[cellNEI[ii][k]][2];j++){
d1x=x1[i];
d1y=y1[i];
d1z=z1[i];
d2x=x2[j];
d2y=y2[j];
d2z=z2[j];
sx=d2x-d1x;
sy=d2y-d1y;
sz=d2z-d1z;
lx=d1x+sx/2.;
ly=d1y+sy/2.;
lz=d1z+sz/2.;
s=sqrt(sx*sx+sy*sy+sz*sz);
l=sqrt(lx*lx+ly*ly+lz*lz);
mu=fabs((lx*sx+ly*sy+lz*sz)/(s*l));
s_pi=s*mu;
rp=s*sqrt(1-mu*mu);
if(log10(rp)>=rp_min && log10(rp)<=rp_max && s_pi>=pi_min && s_pi<=pi_max) {
//if(rp>=rp_min && rp<=rp_max && s_pi>=pi_min && s_pi<=pi_max) {
ic=floor(log10(rp/pow(10,rp_min))/drp +1.0);
//ic=floor((rp-rp_min)/drp +1.0);
jc=floor((s_pi -pi_min)/dpi +1.0);
if (ic<1) ic=1;
else if(ic>Nbin_rp) ic=Nbin_rp;
if (jc<1) jc=1;
else if(jc>Nbin_pi) jc=Nbin_pi;
Npair[ic][jc]=Npair[ic][jc]+1.0;
}
}
}}
else {
for(i=galIND_1[ii][1];i<=galIND_1[ii][2];i++){
for(j=galIND_2[cellNEI[ii][k]][1];j<=galIND_2[cellNEI[ii][k]][2];j++){
d1x=x1[i];
d1y=y1[i];
d1z=z1[i];
d2x=x2[j];
d2y=y2[j];
d2z=z2[j];
sx=d2x-d1x;
sy=d2y-d1y;
sz=d2z-d1z;
lx=d1x+sx/2.;
ly=d1y+sy/2.;
lz=d1z+sz/2.;
s=sqrt(sx*sx+sy*sy+sz*sz);
l=sqrt(lx*lx+ly*ly+lz*lz);
mu=fabs((lx*sx+ly*sy+lz*sz)/(s*l));
s_pi=s*mu;
rp=s*sqrt(1-mu*mu);
if(log10(rp)>=rp_min && log10(rp)<=rp_max && s_pi>=pi_min && s_pi<=pi_max) {
ic=floor(log10(rp/pow(10,rp_min))/drp +1.0);
//if(rp>=rp_min && rp<=rp_max && s_pi>=pi_min && s_pi<=pi_max) {
//ic=floor((rp-rp_min)/drp +1.0);
jc=floor((s_pi -pi_min)/dpi +1.0);
if (ic<1) ic=1;
else if(ic>Nbin_rp) ic=Nbin_rp;
if (jc<1) jc=1;
else if(jc>Nbin_pi) jc=Nbin_pi;
Npair[ic][jc]=Npair[ic][jc]+1.0;
}
}
}}
}
}
}
int main(int argc, char *argv[])
{
int i,j,auto_opt;
double rp_min,rp_max,pi_min,pi_max;
double Lx,Ly,Lz;
double *rp_cen,*pi_cen;
int Nbin_rp,Nbin_pi;
int **galIND_1, **cellNEI,**galIND_2,*begin_1,*end_1,*begin_2,*end_2;
int begintmp,endtmp,cn1tmp,cn2tmp,cn3tmp,cn4tmp,cn5tmp,cn6tmp,cn7tmp,cn8tmp,cn9tmp,cn10tmp,cn11tmp,cn12tmp,cn13tmp,cn14tmp,cn15tmp,cn16tmp,cn17tmp,cn18tmp,cn19tmp,cn20tmp,cn21tmp,cn22tmp,cn23tmp,cn24tmp,cn25tmp,cn26tmp,cn27tmp,*cn1,*cn2,*cn3,*cn4,*cn5,*cn6,*cn7,*cn8,*cn9,*cn10,*cn11,*cn12,*cn13,*cn14,*cn15,*cn16,*cn17,*cn18,*cn19,*cn20,*cn21,*cn22,*cn23,*cn24,*cn25,*cn26,*cn27;
double xtmp,ytmp,ztmp;
double *x1,*y1,*z1,*x2,*y2,*z2;
int N1,N2,N3,N4,N5;
double Npair_tot,**Npair;
char file1[128],file2[128],file3[128],file4[128],file5[128],filename[128];
FILE *fp1,*fp2,*fp3,*fp4,*fp5,*fp;
int Nx,Ny;
float ftmp;
if(argc!=16) {
printf("Count pairs ...\n"
"Usage: %s catalog1 catalog2 galIND_file1 galIND_file2 cellNEI_file1 s_min(ln) s_max(ln) u_min (linear) u_max(linear) "
"Nbin_s Nbin_u Lx Ly Lz Fileout.dat\n",argv[0]);
exit(0);
}
strcpy(file1,argv[1]);
strcpy(file2,argv[2]);
strcpy(file3,argv[3]);
strcpy(file4,argv[4]);
strcpy(file5,argv[5]);
rp_min =atof(argv[6]);
rp_max =atof(argv[7]);
pi_min =atof(argv[8]);
pi_max =atof(argv[9]);
Nbin_rp =atoi(argv[10]);
Nbin_pi =atoi(argv[11]);
Lx =atof(argv[12]);
Ly =atof(argv[13]);
Lz =atof(argv[14]);
if(rp_min>=rp_max) {
printf("Well, rp_min < rp_max, please.\n");
exit(0);
}
if(pi_min>=pi_max) {
printf("Well, pi_min < pi_max, please.\n");
exit(0);
}
if(Nbin_rp<=1 || Nbin_pi<=1) {
printf("Well, Nbin_rp and Nbin_pi > 1, please.\n");
exit(0);
}
/*** read files and define arrays **/
if(strcmp(file1,file2)==0) {
auto_opt=1;
if(!(fp1=fopen(file1,"rt"))) {
printf("cannot find %s\n",file1);
exit(0);
}
fscanf(fp1,"%lf %lf %lf",&xtmp,&ytmp,&ztmp);
N1=0;
while(!feof(fp1)) {
N1=N1+1;
fscanf(fp1,"%lf %lf %lf",&xtmp,&ytmp,&ztmp);
}
rewind(fp1);
N2=N1;
}
else {
auto_opt=0;
if(!(fp1=fopen(file1,"rt"))) {
printf("cannot find %s\n",file1);
exit(0);
}
if(!(fp2=fopen(file2,"rt"))) {
printf("cannot find %s\n",file2);
exit(0);
}
fscanf(fp1,"%lf %lf %lf",&xtmp,&ytmp,&ztmp);
N1=0;
while(!feof(fp1)) {
N1=N1+1;
fscanf(fp1,"%lf %lf %lf",&xtmp,&ytmp,&ztmp);
}
rewind(fp1);
fscanf(fp2,"%lf %lf %lf",&xtmp,&ytmp,&ztmp);
N2=0;
while(!feof(fp2)) {
N2=N2+1;
fscanf(fp2,"%lf %lf %lf",&xtmp,&ytmp,&ztmp);
}
rewind(fp2);
}
//**Read in tree cell files**//
if(strcmp(file3,file4)==0) {
if(!(fp3=fopen(file3,"rt"))) {
printf("cannot find %s\n",file3);
exit(0);
}
fscanf(fp3,"%d %d",&begintmp,&endtmp);
N3=0;
while(!feof(fp3)) {
N3=N3+1;
fscanf(fp3,"%d %d",&begintmp,&endtmp);
}
rewind(fp3);
N4=N3;
}
else {
if(!(fp3=fopen(file3,"rt"))) {
printf("cannot find %s\n",file3);
exit(0);
}
if(!(fp4=fopen(file4,"rt"))) {
printf("cannot find %s\n",file4);
exit(0);
}
fscanf(fp3,"%d %d",&begintmp,&endtmp);
N3=0;
while(!feof(fp3)) {
N3=N3+1;
fscanf(fp3,"%d %d",&begintmp,&endtmp);
}
rewind(fp3);
fscanf(fp4,"%d %d",&begintmp,&endtmp);
N4=0;
while(!feof(fp4)) {
N4=N4+1;
fscanf(fp4,"%d %d",&begintmp,&endtmp);
}
rewind(fp4);
}
if(!(fp5=fopen(file5,"rt"))) {
printf("cannot find %s\n",file5);
exit(0);
}
fscanf(fp5,"%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d", &cn1tmp,&cn2tmp,&cn3tmp,&cn4tmp,&cn5tmp,&cn6tmp,&cn7tmp,&cn8tmp,&cn9tmp,&cn10tmp,&cn11tmp,&cn12tmp,&cn13tmp,&cn14tmp,&cn15tmp,&cn16tmp,&cn17tmp,&cn18tmp,&cn19tmp,&cn20tmp,&cn21tmp,&cn22tmp,&cn23tmp,&cn24tmp,&cn25tmp,&cn26tmp,&cn27tmp);
N5=0;
while(!feof(fp5)) {
N5=N5+1;
fscanf(fp5,"%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d", &cn1tmp,&cn2tmp,&cn3tmp,&cn4tmp,&cn5tmp,&cn6tmp,&cn7tmp,&cn8tmp,&cn9tmp,&cn10tmp,&cn11tmp,&cn12tmp,&cn13tmp,&cn14tmp,&cn15tmp,&cn16tmp,&cn17tmp,&cn18tmp,&cn19tmp,&cn20tmp,&cn21tmp,&cn22tmp,&cn23tmp,&cn24tmp,&cn25tmp,&cn26tmp,&cn27tmp);
}
rewind(fp5);
if (N3!=N5) printf("Catalog 1 does not have same cell number as cell neighbor table.\nN3= %d\nN5= %d\n",N3,N5);
if (N4!=N5) printf("Catalog 2 does not have same cell number as cell neighbor table.\nN4= %d\nN5= %d\n",N4,N5);
rp_cen= vector(1,Nbin_rp);
pi_cen = vector(1,Nbin_pi);
Npair =matrix(1,Nbin_rp,1,Nbin_pi);
x1 = vector(1,N1);
y1 = vector(1,N1);
z1 = vector(1,N1);
x2 = vector(1,N2);
y2 = vector(1,N2);
z2 = vector(1,N2);
begin_1 = ivector(1,N3);
end_1 = ivector(1,N3);
begin_2 = ivector(1,N4);
end_2 = ivector(1,N4);
cn1 = ivector(1,N5);
cn2 = ivector(1,N5);
cn3 = ivector(1,N5);
cn4 = ivector(1,N5);
cn5 = ivector(1,N5);
cn6 = ivector(1,N5);
cn7 = ivector(1,N5);
cn8 = ivector(1,N5);
cn9 = ivector(1,N5);
cn10 = ivector(1,N5);
cn11 = ivector(1,N5);
cn12 = ivector(1,N5);
cn13 = ivector(1,N5);
cn14 = ivector(1,N5);
cn15 = ivector(1,N5);
cn16 = ivector(1,N5);
cn17 = ivector(1,N5);
cn18 = ivector(1,N5);
cn19 = ivector(1,N5);
cn20 = ivector(1,N5);
cn21 = ivector(1,N5);
cn22 = ivector(1,N5);
cn23 = ivector(1,N5);
cn24 = ivector(1,N5);
cn25 = ivector(1,N5);
cn26 = ivector(1,N5);
cn27 = ivector(1,N5);
galIND_1 = imatrix(1,N3,1,2);
cellNEI = imatrix(1,N5,1,27);
galIND_2 = imatrix(1,N4,1,2);
if(auto_opt==1) {
for(i=1;i<=N1;i++) {
fscanf(fp1,"%lf %lf %lf",&(x1[i]),&(y1[i]),&(z1[i]));
x2[i]=x1[i];
y2[i]=y1[i];
z2[i]=z1[i];
}
fclose(fp1);
for(i=1;i<=N3;i++) {
fscanf(fp3,"%d %d",&(begin_1[i]),&(end_1[i]));
galIND_1[i][1]=begin_1[i];
galIND_1[i][2]=end_1[i];
galIND_2[i][1]=begin_1[i];
galIND_2[i][2]=end_1[i];
}
fclose(fp3);
}
else {
for(i=1;i<=N1;i++)
fscanf(fp1,"%lf %lf %lf",&(x1[i]),&(y1[i]),&(z1[i]));
for(i=1;i<=N2;i++)
fscanf(fp2,"%lf %lf %lf",&(x2[i]),&(y2[i]),&(z2[i]));
fclose(fp1);
fclose(fp2);
for(i=1;i<=N3;i++) {
fscanf(fp3,"%d %d",&(begin_1[i]),&(end_1[i]));
galIND_1[i][1]=begin_1[i];
galIND_1[i][2]=end_1[i];
}
fclose(fp3);
for(i=1;i<=N4;i++) {
fscanf(fp4,"%d %d",&(begin_2[i]),&(end_2[i]));
galIND_2[i][1]=begin_2[i];
galIND_2[i][2]=end_2[i];
}
fclose(fp4);
}
for(i=1;i<=N5;i++) {
fscanf(fp5,"%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d", &(cn1[i]),&(cn2[i]),&(cn3[i]),&(cn4[i]),&(cn5[i]),&(cn6[i]),&(cn7[i]),&(cn8[i]),&(cn9[i]),&(cn10[i]),&(cn11[i]),&(cn12[i]),&(cn13[i]),&(cn14[i]),&(cn15[i]),&(cn16[i]),&(cn17[i]),&(cn18[i]),&(cn19[i]),&(cn20[i]),&(cn21[i]),&(cn22[i]),&(cn23[i]),&(cn24[i]),&(cn25[i]),&(cn26[i]),&(cn27[i]));
cellNEI[i][1]=cn1[i];
cellNEI[i][2]=cn2[i];
cellNEI[i][3]=cn3[i];
cellNEI[i][4]=cn4[i];
cellNEI[i][5]=cn5[i];
cellNEI[i][6]=cn6[i];
cellNEI[i][7]=cn7[i];
cellNEI[i][8]=cn8[i];
cellNEI[i][9]=cn9[i];
cellNEI[i][10]=cn10[i];
cellNEI[i][11]=cn11[i];
cellNEI[i][12]=cn12[i];
cellNEI[i][13]=cn13[i];
cellNEI[i][14]=cn14[i];
cellNEI[i][15]=cn15[i];
cellNEI[i][16]=cn16[i];
cellNEI[i][17]=cn17[i];
cellNEI[i][18]=cn18[i];
cellNEI[i][19]=cn19[i];
cellNEI[i][20]=cn20[i];
cellNEI[i][21]=cn21[i];
cellNEI[i][22]=cn22[i];
cellNEI[i][23]=cn23[i];
cellNEI[i][24]=cn24[i];
cellNEI[i][25]=cn25[i];
cellNEI[i][26]=cn26[i];
cellNEI[i][27]=cn27[i];
}
fclose(fp5);
printf("# %s %s ln(r_p)=(%6.2f,%6.2f) r_pi=(%6.2f,%6.2f) %d r_p bins %d r_pi bins L_x=%5.2fh^-1Mpc L_y=%5.2fh^-1Mpc L_z=%5.2fh^-1Mpc %d %d Halos\n",file1,file2,rp_min,rp_max,pi_min,pi_max,Nbin_rp,Nbin_pi,Lx,Ly,Lz,N1,N2);
PairCount(rp_cen, pi_cen,Npair,
rp_min, rp_max, Nbin_rp,
pi_min, pi_max, Nbin_pi,
x1, y1, z1, N1,
x2, y2, z2, N2, auto_opt,
Lx, Ly, Lz,cellNEI,galIND_1,galIND_2,N3,N4,N5);
if(auto_opt==1) Npair_tot=0.5*N1*(N1-1.0);
else Npair_tot=(N1+0.0)*(N2+0.0);
char fileout[128];
strcpy(fileout,argv[15]);
if(!(fp=fopen(fileout,"wt"))) FO_error(fileout);
for (j=1;j<=Nbin_pi;j++)
for(i=1;i<=Nbin_rp;i++)
fprintf(fp,"%10.6f %10.6f %e\n",pow(10,rp_cen[i]),pi_cen[j],Npair[i][j]);
fclose(fp);
free_vector(rp_cen, 1,Nbin_rp);
free_vector(pi_cen, 1,Nbin_pi);
free_matrix(Npair,1,Nbin_rp,1,Nbin_pi);
free_vector(x1, 1,N1);
free_vector(y1, 1,N1);
free_vector(z1, 1,N1);
free_vector(x2, 1,N2);
free_vector(y2, 1,N2);
free_vector(z2, 1,N2);
free_ivector(begin_1, 1,N3);
free_ivector(end_1, 1,N3);
free_ivector(begin_2, 1,N4);
free_ivector(end_2, 1,N4);
free_ivector(cn1, 1,N5);
free_ivector(cn2, 1,N5);
free_ivector(cn3, 1,N5);
free_ivector(cn4, 1,N5);
free_ivector(cn5, 1,N5);
free_ivector(cn6, 1,N5);
free_ivector(cn7, 1,N5);
free_ivector(cn8, 1,N5);
free_ivector(cn9, 1,N5);
free_ivector(cn10, 1,N5);
free_ivector(cn11, 1,N5);
free_ivector(cn12, 1,N5);
free_ivector(cn13, 1,N5);
free_ivector(cn14, 1,N5);
free_ivector(cn15, 1,N5);
free_ivector(cn16, 1,N5);
free_ivector(cn17, 1,N5);
free_ivector(cn18, 1,N5);
free_ivector(cn19, 1,N5);
free_ivector(cn20, 1,N5);
free_ivector(cn21, 1,N5);
free_ivector(cn22, 1,N5);
free_ivector(cn23, 1,N5);
free_ivector(cn24, 1,N5);
free_ivector(cn25, 1,N5);
free_ivector(cn26, 1,N5);
free_ivector(cn27, 1,N5);
free_imatrix(galIND_1,1,N3,1,2);
free_imatrix(cellNEI,1,N5,1,27);
free_imatrix(galIND_2,1,N4,1,2);
printf("Program Finished.");
}