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testFitter.py
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#!/usr/bin/env python
from ROOT import *
import sys
import numpy
fName = sys.argv[1]
rootFile = TFile(fName,'r')
gROOT.SetBatch()
ROOT.gStyle.SetCanvasColor(0)
f = fName.split('_')
rValue = int(f[f.index('Range')+1])
vOffset = rValue*64
print rValue
print vOffset
def subrangeFit(x,p):
if x[0] - vOffset < 16:
return p[0]*x[0] + p[1]
elif x[0] - vOffset < 36:
return 2*p[0]*x[0] + p[2]
elif x[0] - vOffset < 57:
return 4*p[0]*x[0] + p[3]
elif x[0] - vOffset < 63:
return 8*p[0]*x[0] + p[4]
else: return 0
def subrangeFit2(x,p):
if 0.5 < x[0] - vOffset < 15:
return p[0]*x[0] + p[1]
elif 16 < x[0] - vOffset < 35:
return 2*p[0]*x[0] + p[2]
elif 36 < x[0] - vOffset < 56:
return 4*p[0]*x[0] + p[3]
elif 57 < x[0] - vOffset < 63:
return 8*p[0]*x[0] + p[4]
else:
return 0
histoList = range(60,68)
for ih in histoList:
histo = rootFile.Get("fCvsADC_"+str(ih))
low0, high0 = 0,0
low1, high1 = 0,0
low2, high2 = 0,0
low3, high3 = 0,0
fC = histo.GetX()
ADC = histo.GetY()
N = histo.GetN()
maxFC = 0
minFC = 999999
maxADC = 0
minADC = 999999
for n in range(1,N-1):
if fC[n] > maxFC: maxFC = fC[n]
if fC[n] < minFC: minFC = fC[n]
if ADC[n] > maxADC: maxADC = ADC[n]
if ADC[n] < minADC: minADC = ADC[n]
print minFC, maxFC
print minADC, maxADC
for n in range(1,N-1):
adc = ADC[n]-vOffset
if adc<1: low0 = fC[n]
if adc<15: high0 = fC[n]
if adc<16.5: low1 = fC[n]
if adc<35: high1 = fC[n]
if adc<36.5: low2 = fC[n]
if adc<56: high2 = fC[n]
if adc<57.5: low3 = fC[n]
if adc<62.5: high3 = fC[n]
doSub0 = low0<high0
doSub1 = low1<high1
doSub2 = low2<high2
doSub3 = low3<high3
countsubranges = 0
if doSub0: countsubranges+=1
if doSub1: countsubranges+=1
if doSub2: countsubranges+=1
if doSub3: countsubranges+=1
histo.SetTitle("Charge vs ADC, Range %i" % rValue)
sub0_0 = TF1("sub0_0","pol1",low0,high0)
sub0_1 = TF1("sub0_1","pol1",low1,high1)
sub0_2 = TF1("sub0_2","pol1",low2,high2)
sub0_3 = TF1("sub0_3","pol1",low3,high3)
c1 = TCanvas()
histo.Draw("ap")
histo.GetXaxis().SetTitle("Charge (fC)")
histo.GetYaxis().SetTitle("ADC")
histo.Fit("sub0_0","","",low0,high0)
histo.Fit("sub0_1","","",low1,high1)
histo.Fit("sub0_2","","",low2,high2)
histo.Fit("sub0_3","","",low3,high3)
sub0_0.SetLineColor(kRed)
sub0_1.SetLineColor(kRed)
sub0_2.SetLineColor(kRed)
sub0_3.SetLineColor(kRed)
if doSub0: sub0_0.Draw("same")
if doSub1: sub0_1.Draw("same")
if doSub2: sub0_2.Draw("same")
if doSub3: sub0_3.Draw("same")
xmin = histo.GetXaxis().GetXmin()
xmax = histo.GetXaxis().GetXmax()
ymin = histo.GetYaxis().GetXmin()
ymax = histo.GetYaxis().GetXmax()
text = TPaveText(xmax - (xmax-xmin)*.5, ymin + (ymax-ymin)*.1,xmax - (xmax-xmin)*.1,ymin+(ymax-ymin)*(.1+.1*countsubranges))
text.SetFillColor(kWhite)
text.SetFillStyle(4000)
if doSub0: text.AddText("subrange0 = %.2f fC/ADC" % (1./sub0_0.GetParameter(1)))
if doSub1: text.AddText("subrange1 = %.2f fC/ADC" % (1./sub0_1.GetParameter(1)))
if doSub2: text.AddText("subrange2 = %.2f fC/ADC" % (1./sub0_2.GetParameter(1)))
if doSub3: text.AddText("subrange3 = %.2f fC/ADC" % (1./sub0_3.GetParameter(1)))
text.Draw("same")
c1.SaveAs("plots/fCvsADC_"+str(ih)+".png")
sub0_0 = TF1("sub0_0","pol1",1 +vOffset,15+vOffset)
sub0_1 = TF1("sub0_1","pol1",16+vOffset,36+vOffset)
sub0_2 = TF1("sub0_2","pol1",36+vOffset,56+vOffset)
sub0_3 = TF1("sub0_3","pol1",57+vOffset,61+vOffset)
sub0_0.SetParameters(1,3)
sub0_1.SetParameters(1,6)
sub0_2.SetParameters(1,12)
sub0_3.SetParameters(1,24)
histo2 = rootFile.Get("ADCvsfC_"+str(ih))
histo2.SetTitle("ADC vs Charge, Range %i" % rValue)
histo2.GetYaxis().SetTitle("Charge (fC)")
histo2.GetYaxis().SetTitleOffset(1.2)
histo2.GetXaxis().SetTitle("ADC")
histo2.Fit("sub0_0","","",1 +vOffset,15+vOffset)
histo2.Fit("sub0_1","","",16+vOffset,36+vOffset)
histo2.Fit("sub0_2","","",36+vOffset,56+vOffset)
histo2.Fit("sub0_3","","",57+vOffset,61+vOffset)
histo2.Draw('ap')
if doSub0: sub0_0.Draw("same")
if doSub1: sub0_1.Draw("same")
if doSub2: sub0_2.Draw("same")
if doSub3: sub0_3.Draw("same")
xmin = histo2.GetXaxis().GetXmin()
xmax = histo2.GetXaxis().GetXmax()
ymin = histo2.GetYaxis().GetXmin()
ymax = histo2.GetYaxis().GetXmax()
text = TPaveText(xmin + (xmax-xmin)*.1, ymax - (ymax-ymin)*(.1+.1*countsubranges),xmin + (xmax-xmin)*.5,ymax-(ymax-ymin)*.1)
text.SetFillColor(kWhite)
text.SetFillStyle(4000)
if doSub0: text.AddText("subrange0 = %.2f fC/ADC" % (sub0_0.GetParameter(1)))
if doSub1: text.AddText("subrange1 = %.2f fC/ADC" % (sub0_1.GetParameter(1)))
if doSub2: text.AddText("subrange2 = %.2f fC/ADC" % (sub0_2.GetParameter(1)))
if doSub3: text.AddText("subrange3 = %.2f fC/ADC" % (sub0_3.GetParameter(1)))
text.Draw("same")
c1.SaveAs("plots/ADCvsfC_"+str(ih)+".png")
combined = TF1("fullrange",subrangeFit,1+vOffset,62+vOffset,5)
combined.SetParameters(sub0_0.GetParameter(1), sub0_0.GetParameter(0), sub0_1.GetParameter(0), sub0_2.GetParameter(0), sub0_3.GetParameter(0))
print combined
histo2.Fit(combined,"","",1+vOffset,62+vOffset)
print combined
histo2.Draw('ap')
combined.Draw("same")
text = TPaveText(xmin + (xmax-xmin)*.1, ymax - (ymax-ymin)*(.1+.1*countsubranges),xmin + (xmax-xmin)*.6,ymax-(ymax-ymin)*.1)
text.SetFillColor(kWhite)
text.SetFillStyle(4000)
text.AddText("Constrained slope = %.2f fC/ADC" % (combined.GetParameter(0)))
text.Draw("same")
c1.SaveAs("plots/ADCvsfC_constrained_"+str(ih)+".png")