int
main ( void )
{
double bp ;
// problem we were assigned to solve
bp = binomial_probability ( 35 , 10 , 0.1L ) ;
printf ( "Probability is: %lf\n" , bp ) ;
// Worst case scenario from listed requirements
bp = binomial_probability ( 100 , 50 , 0.1L ) ;
printf ( "Probability is: %.100lf\n" , bp ) ;
return 0 ;
}
double get_likelihood()
{
//Variables for all the LF/SM function like tests
double *binsamdata, *samdata;
//variables for the bulge-blackhole mass test using binomial
double binblackholeup[2]={0.0,0.0}, binblackholedown[2]={0.0,0.0};
double final_probability, redshift_probability, current_probability;
double prob_SMF_z0;
int i, j, snap;
double color_UV, color_VJ;
//OBSERVATIONAL CUT
//double offset_color_cut[NOUT]={0.00, 0.69, 0.59, 0.59, 0.59}; //not used at z=0
//double slope_color_cut[NOUT]={0.00, 0.88, 0.88, 0.88, 0.88};
//BEST FIT TO MODEL CUT
#ifndef HALOMODEL
double offset_color_cut[NOUT]={0.00, 1.085, 1.1, 1.0, 1.15}; //not used at z=0
double slope_color_cut[NOUT]={0.00, 0.5, 0.48, 0.38, 0.18};
#else
double offset_color_cut[NOUT]={0.00}; //not used at z=0
double slope_color_cut[NOUT]={0.00};
#endif
/* Bin samdata into binsamdata according to observational constraints.
* The first argument of the bin functions and of the likelihood
* function (Chi^2 ot MLM) indicates the observational data set to use.*/
//ALL Luminosity Function to be compared in units of M-5logh and phi(Mpc-3h-3mag-1)
final_probability=1.;
for(snap=0;snap<NOUT;snap++)
{
printf("snap=%d\n",snap);
redshift_probability=1.;
if((samdata = malloc(sizeof(double) * TotMCMCGals[snap])) == NULL)
terminate("get_likelihood");
#ifdef HALOMODEL
correct_for_correlation(snap);
#endif
for(i=0;i<MCMCNConstraints;i++)
{
if(MCMC_Obs[i].ObsTest_Switch_z[snap]==1)
{
if((binsamdata = malloc(sizeof(double) * Nbins[snap][i])) == NULL)
terminate("get_likelihood");
/******************************
** Chi_Sq TESTS **
******************************/
if(strcmp(MCMC_Obs[i].TestType,"chi_sq")==0)
{
//bin all the galaxie into binsamdata for properties that just require normal histograms
for(j = 0; j < TotMCMCGals[snap]; j++)
{
samdata[j] = 0.; //initialize
if(strcmp(MCMC_Obs[i].Name,"StellarMassFunction")==0)
samdata[j] = MCMC_GAL[j].StellarMass[snap];
if(strcmp(MCMC_Obs[i].Name,"KBandLF")==0)
samdata[j] = MCMC_GAL[j].MagK[snap];
if(strcmp(MCMC_Obs[i].Name,"BBandLF")==0)
{
if((double)((int)((MCMCConstraintsZZ[snap]*10)+0.5)/10.)<0.2) //Bj band at z=0
samdata[j]=MCMC_GAL[j].MagB[snap]-0.28*(MCMC_GAL[j].MagB[snap]-MCMC_GAL[j].MagV[snap]);
else //BBand at all other z
samdata[j]=MCMC_GAL[j].MagB[snap];
}
if(strcmp(MCMC_Obs[i].Name,"uBandLF")==0)
samdata[j] = MCMC_GAL[i].Magu[snap];
if(strcmp(MCMC_Obs[i].Name,"ColdGasMassFunction")==0)
samdata[j] = MCMC_GAL[j].ColdGas[snap];
//Stellar Mass Function of Passive Galaxies
if(strcmp(MCMC_Obs[i].Name,"StellarMassFunctionPassive")==0)
if( MCMC_GAL[j].Sfr[snap]* 1.e9 /pow(10.,MCMC_GAL[j].StellarMass[snap]) < 0.01 )
samdata[j] = MCMC_GAL[j].StellarMass[snap];
//Stellar Mass Function of Active Galaxies
if(strcmp(MCMC_Obs[i].Name,"StellarMassFunctionActive")==0)
if( MCMC_GAL[j].Sfr[snap]* 1.e9 /pow(10.,MCMC_GAL[j].StellarMass[snap]) > 0.3 )
samdata[j] = MCMC_GAL[j].StellarMass[snap];
//Stellar Mass Function of Red Galaxies
//original cut in bladry 2004 (2.06-0.244*tanh((MCMC_GAL[j].Magr[snap]+20.07)/1.09))
if(strcmp(MCMC_Obs[i].Name,"StellarMassFunctionRed")==0)
{
if((double)((int)((MCMCConstraintsZZ[snap]*10)+0.5)/10.)<0.2) //z=0
{
if( (MCMC_GAL[j].Magu[snap]-MCMC_GAL[j].Magr[snap]) > (1.9-0.244*tanh((MCMC_GAL[j].Magr[snap]+20.07)/1.09)))
samdata[j] = MCMC_GAL[j].StellarMass[snap];
}
else //z>0
{
color_UV=(MCMC_GAL[j].MagU[snap]-MCMC_GAL[j].MagV[snap]);
color_VJ=(MCMC_GAL[j].MagV[snap]-MCMC_GAL[j].MagJ[snap]);
if( (color_VJ < (1.3-offset_color_cut[snap])/slope_color_cut[snap] && color_UV > 1.3) ||
(color_VJ > (1.3-offset_color_cut[snap])/slope_color_cut[snap] && color_UV > color_VJ*slope_color_cut[snap]+offset_color_cut[snap]) )
samdata[j] = MCMC_GAL[j].StellarMass[snap];
}
}
//Stellar Mass Function of Blue Galaxies
//original cut in bladry 2004 (2.06-0.244*tanh((MCMC_GAL[j].Magr[snap]+20.07)/1.09))
if(strcmp(MCMC_Obs[i].Name,"StellarMassFunctionBlue")==0)
{
if((double)((int)((MCMCConstraintsZZ[snap]*10)+0.5)/10.)<0.2) //z=0
{
if( (MCMC_GAL[j].Magu[snap]-MCMC_GAL[j].Magr[snap]) < (1.9-0.244*tanh((MCMC_GAL[j].Magr[snap]+20.07)/1.09)))
samdata[j] = MCMC_GAL[j].StellarMass[snap];
}
else //z>0
{
color_UV=(MCMC_GAL[j].MagU[snap]-MCMC_GAL[j].MagV[snap]);
color_VJ=(MCMC_GAL[j].MagV[snap]-MCMC_GAL[j].MagJ[snap]);
if( (color_VJ < (1.3-offset_color_cut[snap])/slope_color_cut[snap] && color_UV < 1.3) ||
(color_VJ > (1.3-offset_color_cut[snap])/slope_color_cut[snap] && color_UV < color_VJ*slope_color_cut[snap]+offset_color_cut[snap]) )
samdata[j] = MCMC_GAL[j].StellarMass[snap];
}
}
}//end loop on number of galaxies
bin_function(i, binsamdata, samdata, snap);
//SFRD only has one bin
if(strcmp(MCMC_Obs[i].Name,"SFRD")==0)
{
binsamdata[0]=0;
for(j = 0; j < TotMCMCGals[snap]; j++)
binsamdata[0]+=MCMC_GAL[j].Sfr[snap]*MCMC_GAL[j].Weight[snap];
}
#ifdef HALOMODEL
//Correlation Function - requires more than just binning
if(strncmp(MCMC_Obs[i].Name,"Clustering_MassBins_8.77_9.27",28)==0)
compute_correlation_func(i, binsamdata, snap, 8.77, 9.27);
if(strncmp(MCMC_Obs[i].Name,"Clustering_MassBins_9.27_9.77",28)==0)
compute_correlation_func(i, binsamdata, snap, 9.27, 9.77);
if(strncmp(MCMC_Obs[i].Name,"Clustering_MassBins_9.77_10.27",28)==0)
compute_correlation_func(i, binsamdata, snap, 9.77, 10.27);
if(strncmp(MCMC_Obs[i].Name,"Clustering_MassBins_10.27_10.77",28)==0)
compute_correlation_func(i, binsamdata, snap, 10.27, 10.77);
if(strncmp(MCMC_Obs[i].Name,"Clustering_MassBins_10.77_11.27",28)==0)
compute_correlation_func(i, binsamdata, snap, 10.77, 11.27);
if(strncmp(MCMC_Obs[i].Name,"Clustering_MassBins_11.27_11.47",28)==0)
compute_correlation_func(i, binsamdata, snap, 11.27, 11.77);
#endif
current_probability=chi_square_probability(i, binsamdata, snap);
}//end chi_sq tests
/******************************
** Maximum Likelihood TESTS **
******************************/
if(strcmp(MCMC_Obs[i].TestType,"maxlike")==0)
{
if(strcmp(MCMC_Obs[i].Name,"RedFraction")==0)
{
bin_red_fraction(i, binsamdata, snap);
current_probability=maximum_likelihood_probability(i, binsamdata, snap);
}
}
if(strcmp(MCMC_Obs[i].TestType,"maxlike")==0)
{
if(strcmp(MCMC_Obs[i].Name,"PassiveFraction")==0)
{
bin_passive_fraction(i, binsamdata, snap);
current_probability=maximum_likelihood_probability(i, binsamdata, snap);
}
}
/******************************
** Binomial TESTS **
******************************/
if(strcmp(MCMC_Obs[i].TestType,"binomial")==0)
{
if(strcmp(MCMC_Obs[i].Name,"BlackHoleBulgeMass")==0)
{
bin_bhbm(binblackholeup, binblackholedown, snap);
current_probability=binomial_probability(i, binblackholeup, binblackholedown, snap);
}
}
//END BINOMIAL TESTS
free(binsamdata);
redshift_probability*=current_probability;
printf("prob[%d]=%0.5e\n",i,current_probability);
//write likelihood for each constraint at each MCMC step
fprintf(FILE_MCMC_PredictionsPerStep[snap][i], " %0.5e", current_probability);
//save probability of the stellar mass function at z=0
//if(snap==0 && strcmp(MCMC_Obs[i].Name,"StellarMassFunction")==0)
// prob_SMF_z0=current_probability;
}//end if(MCMC_Obs[i].ObsTest_Switch_z[snap]==1)
}//end loop on MCMCNConstraints
printf("snap[%d] prob=%0.5e\n",snap, redshift_probability);
final_probability*=redshift_probability;
free(samdata);
#ifdef HALOMODEL
free(MCMC_FOF2);
free(HashTable);
#endif
}//end loop on snaps
printf("final prob=%0.5e\nlog_like=%0.8g\n",final_probability, -log10(final_probability));
//write total likelihood into separate files and into
//the end of the line on the file with the comparison to each constraint
fprintf(FILE_MCMC_LIKELIHOOD,"%0.8g\n",-log10(final_probability));
fflush(FILE_MCMC_LIKELIHOOD);
for(i=0;i<MCMCNConstraints;i++)
for(snap=0;snap<NOUT;snap++)
if(MCMC_Obs[i].ObsTest_Switch_z[snap]==1)
{
fprintf(FILE_MCMC_PredictionsPerStep[snap][i], " %0.8g\n", -log10(final_probability));
fflush(FILE_MCMC_PredictionsPerStep[snap][i]);
}
//if(final_probability>1.e-22 && prob_SMF_z0>1.e-4)
// printf("ola\n");
return final_probability;
}
