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CutFlightBackground_EGB.py
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CutFlightBackground_EGB.py
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#!/usr/bin/env python
import sys
import os.path
import ROOT
from ROOT import TFile, TTree, TChain, TH1, TH2, TH3, TH1F, TH2F, TH3F, TGraph, TGraphErrors, TCanvas, TF1, TF2, kRed, kBlue, kMagenta, kBlack, kWhite
import numpy as np
import commands
import click
from array import array
import math
from math import cos, sin, tan, acos, asin, atan, radians, degrees, log, log10, sqrt
import CreateGalOffROC3D
ROOT.gROOT.SetBatch()
def find_point_rbkg(graph, bkg_floor, rbkg):
d1, d2 = ROOT.Double(0), ROOT.Double(0)
npoint_threshold = None
npoint_threshold_error = None
for ip in range(graph.GetN()):
graph.GetPoint(ip, d1, d2)
e2 = graph.GetErrorY(ip)
#print "{0} +/- {1}".format(d2, e2)
if (d2-e2)<=bkg_floor*rbkg: #/d1*acc_bkg_floor
npoint_threshold_error = ip
break
for jp in range(ip, graph.GetN()):
graph.GetPoint(jp, d1, d2)
if d2<=bkg_floor*rbkg: #/d1*acc_bkg_floor
npoint_threshold = jp
break
#print npoint_threshold_error, npoint_threshold
return (npoint_threshold, npoint_threshold_error)
@click.command()
@click.argument('flightroc', type=str)
@click.option('--outpath', '-o', default=None)
def main(flightroc, outpath):
# Input
file_roc = TFile(flightroc, "READ")
hist_covered = file_roc.Get("hist_covered")
NSTEP = 1000
list_rbkg = [3., 10.]
rbkg_offset = 1.
if outpath is None:
outpath = flightroc.replace("ROC", "CUT")
file_out = TFile(outpath, "RECREATE")
file_out.cd()
dict_hist_out = {}
for rbkg in list_rbkg:
dict_hist_out[rbkg] = hist_covered.Clone("hist_bdt_cut_R{0:0>3.0f}".format(rbkg*10))
dict_hist_out[rbkg].SetTitle("Flight data BDT cut R{0:0>3.0f}".format(rbkg*10))
loge_valid_min = dict_hist_out[rbkg].GetXaxis().GetXmax()
loge_valid_max = 0
cth_valid_min = dict_hist_out[rbkg].GetYaxis().GetXmax()
cth_valid_max = 0
for iloge in range(1, 1+hist_covered.GetXaxis().GetNbins()):
for jcth in range(1, 1+hist_covered.GetYaxis().GetNbins()):
str_region = "E{e}_Z{c}".format(e=iloge, c=jcth)
if hist_covered.GetBinContent(iloge, jcth)>0:
print "*", str_region
loge_bin_min = hist_covered.GetXaxis().GetBinLowEdge(iloge)
if loge_bin_min<loge_valid_min:
loge_valid_min = loge_bin_min
loge_bin_max = hist_covered.GetXaxis().GetBinLowEdge(iloge+1)
if loge_bin_max>loge_valid_max:
loge_valid_max = loge_bin_max
cth_bin_min = hist_covered.GetYaxis().GetBinLowEdge(jcth)
if cth_bin_min<cth_valid_min:
cth_valid_min = cth_bin_min
cth_bin_max = hist_covered.GetYaxis().GetBinLowEdge(jcth+1)
if cth_bin_max>cth_valid_max:
cth_valid_max = cth_bin_max
dir_roc = file_roc.Get(str_region)
graph_evtdens = dir_roc.Get("graph_evtdens_{0}".format(str_region))
hist_acc = dir_roc.Get("sig_acc_cth_cut_{0}".format(str_region))
for rbkg in list_rbkg:
print "{0}x BKG floor".format(rbkg)
bkg_floor = CreateGalOffROC3D.get_ebl_count_integral(e0=10**hist_covered.GetXaxis().GetBinLowEdge(iloge), e1=10**hist_covered.GetXaxis().GetBinLowEdge(iloge+1))
print "BKG floor:", bkg_floor
np_cut, np_cut_error = find_point_rbkg(graph_evtdens, bkg_floor=bkg_floor, rbkg=rbkg+rbkg_offset)
print np_cut, np_cut_error
cut_bdt = hist_acc.GetXaxis().GetBinLowEdge(np_cut)
cut_bdt_err = cut_bdt - hist_acc.GetXaxis().GetBinLowEdge(np_cut_error)
d1, d2 = ROOT.Double(0), ROOT.Double(0) #ROOT.Double
graph_evtdens.GetPoint( np_cut, d1, d2 )
print " BDT cut: {0:1.2E} +/- {1:1.2E} (Acceptance: {2:1.2E}; Background: {3:1.2E})".format(cut_bdt, cut_bdt_err, hist_acc.GetBinContent(np_cut), d2)
dict_hist_out[rbkg].SetBinContent(iloge, jcth, cut_bdt)
dict_hist_out[rbkg].SetBinError(iloge, jcth, cut_bdt_err)
print ""
dict_func_cut = {}
#dict_func_cut['pol0'] = TF2("pol0", "[0]", loge_valid_min, loge_valid_max, cth_valid_min, cth_valid_max)
#dict_func_cut['pol1'] = TF2("pol1", "[0]+[1]*x+[2]*y", loge_valid_min, loge_valid_max, cth_valid_min, cth_valid_max)
#dict_func_cut['pol1'].SetLineColor(kRed)
#dict_func_cut['pol2'] = TF2("pol2", "[0]+[1]*x+[2]*y+[3]*x*x+[4]*x*y+[5]*y*y", loge_valid_min, loge_valid_max, cth_valid_min, cth_valid_max)
dict_func_cut['pol3'] = TF2("pol3", "[0]+[1]*x+[2]*y+[3]*x*x+[4]*x*y+[5]*y*y+[6]*x*x*x+[7]*x*x*y+[8]*x*y*y+[9]*y*y*y", loge_valid_min, loge_valid_max, cth_valid_min, cth_valid_max)
dict_func_cut['pol3'].SetLineColor(kWhite)
for rbkg in list_rbkg:
print "* CalOnlyR{0:0>3.0f}".format(rbkg*10)
dict_hist_out[rbkg].GetXaxis().SetRangeUser(loge_valid_min, loge_valid_max)
dict_hist_out[rbkg].GetYaxis().SetRangeUser(cth_valid_min, cth_valid_max)
for func_name, func in dict_func_cut.items():
print func_name
dict_hist_out[rbkg].Fit(func, "+", "")
str_bdt_cut_func = "{0}".format(func.GetExpFormula())
str_bdt_cut_func = str_bdt_cut_func.replace("*x", "*log10(WP8CalOnlyEnergy)").replace("*y", "*Cal1MomZDir").replace("(x", "(log10(WP8CalOnlyEnergy)").replace("(y", "(Cal1MomZDir")
for kf in range(0, func.GetNpar()):
str_bdt_cut_func = str_bdt_cut_func.replace("[{0}]".format(kf), "{0:1.3E}".format(func.GetParameter(kf)))
print str_bdt_cut_func
dict_hist_out[rbkg].Write()
if __name__ == '__main__':
main()