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modified: Armory/PC_StepLadder_Correction.h

Browse Source 
modified:   TrackRecon.C trying to benchmeark A1Cn events against a1c2 and failing due to flaww in logic
	modified:   run_tr.sh
	modified:   scratch/plot_slope_scan.C
This commit is contained in:
Vignesh Sitaraman 2026-06-11 16:51:41 -04:00
parent 20f8ad227c
commit f7248f6a4e
4 changed files with 222 additions and 51 deletions
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20
Armory/PC_StepLadder_Correction.h
View File

@ -46,16 +46,16 @@ double model_a1c1(double* x, double* p) {
return result;
}
double model_invert_a1c1(double *y, double *q) {
double result=y[0];
/* double slope = 0.40;
double factor = 5.0;
if(TMath::Abs(y[0]) < 16.2/slope) result = y[0]/slope;
else if(TMath::Abs(y[0]) < 49.8/slope ) result=y[0]/slope-TMath::Sign(1.0,y[0])*factor;
else if(TMath::Abs(y[0]) < 85.2/slope ) result=y[0]/slope-TMath::Sign(1.0,y[0])*factor*2;
else result=y[0]/slope-TMath::Sign(1.0,y[0])*factor**/;
return result+40;
}
// double model_invert_a1c1(double *y, double *q) {
// double result=y[0];
// /* double slope = 0.40;
// double factor = 5.0;
// if(TMath::Abs(y[0]) < 16.2/slope) result = y[0]/slope;
// else if(TMath::Abs(y[0]) < 49.8/slope ) result=y[0]/slope-TMath::Sign(1.0,y[0])*factor;
// else if(TMath::Abs(y[0]) < 85.2/slope ) result=y[0]/slope-TMath::Sign(1.0,y[0])*factor*2;
// else result=y[0]/slope-TMath::Sign(1.0,y[0])*factor**/;
// return result+40;
// }
/*void testmodel() {

188
TrackRecon.C
View File

@ -44,6 +44,7 @@ bool doPCSX3ClusterAnalysis = true;
bool doPCQQQClusterAnalysis = true;
bool doOldAnalysis = false;
bool do27AlapAnalysis = false;
bool BenchMark = true;
double source_vertex = 53; // 53
const double qqq_z = 105.0;
double z_entrance = -174.3 - 9.7 - 100.0;
@ -143,13 +144,14 @@ void protonAlphaHistograms(HistPlotter *plotter, std::vector<Event> QQQ_Events,
void miscHistograms_oneWire(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<std::vector<std::tuple<int, double, double>>> aClusters);
void protonMiscHistograms(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events);
void protonMiscHistograms_sx3(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events);
void PCSX3ClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events);
void PCQQQClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events);
void PCSX3ClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events,
const std::vector<std::vector<std::tuple<int, double, double>>> &aClusters, const std::vector<std::vector<std::tuple<int, double, double>>> &cClusters);
void PCQQQClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events,
const std::vector<std::vector<std::tuple<int, double, double>>> &aClusters, const std::vector<std::vector<std::tuple<int, double, double>>> &cClusters);
void TrackRecon::Begin(TTree * /*tree*/)
{
pcfix_func.SetNpx(100000);
///// ---------Set Environment Variables--------- /////
TString option = GetOption();
if (option != "")
@ -599,7 +601,7 @@ Bool_t TrackRecon::Process(Long64_t entry)
// double theta = 2 * TMath::Pi() * (-qqq.id[i] * 16 + (15 - chWedge) + 0.5) / (16 * 4);
double theta = (M_PI/180.)*(-90*qqq.id[i]+(87./16.)*((15-chWedge)+0.5)+3.0);
double theta = (M_PI / 180.) * (-90 * qqq.id[i] + (87. / 16.) * ((15 - chWedge) + 0.5) + 3.0);
double rho = 50. + (50. / 16.) * (chRing + 0.5); //"?"
// z used to be 75+30+23=128
// we found a 12mm shift towards the vertex later --> 116
@ -1024,11 +1026,11 @@ Bool_t TrackRecon::Process(Long64_t entry)
if (doPCSX3ClusterAnalysis)
{
PCSX3ClusterAnalysis(plotter, QQQ_Events, SX3_Events, PC_Events);
PCSX3ClusterAnalysis(plotter, QQQ_Events, SX3_Events, PC_Events, aClusters, cClusters);
}
if (doPCQQQClusterAnalysis)
{
PCQQQClusterAnalysis(plotter, QQQ_Events, SX3_Events, PC_Events);
PCQQQClusterAnalysis(plotter, QQQ_Events, SX3_Events, PC_Events, aClusters, cClusters);
}
///////////////////nA analysis using pseudo-wire (GetPseudoWire + getClosestWirePosAtWirePhi)///////////////////
@ -1362,7 +1364,9 @@ void protonAlphaHistograms(HistPlotter *plotter, std::vector<Event> QQQ_Events,
return;
}
void PCSX3ClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events){
void PCSX3ClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events,
const std::vector<std::vector<std::tuple<int, double, double>>> &aClusters, const std::vector<std::vector<std::tuple<int, double, double>>> &cClusters)
{
for (auto pcevent : PC_Events)
{
bool PCSX3TimeCut = false;
@ -1428,6 +1432,7 @@ void PCSX3ClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, s
plotter->Fill2D("sx3phi_vs_time", 2000, 0, 2000, 180, -360, 360, pcevent.Time1 * 1e-9, sx3event.pos.Phi() * 180. / M_PI, "Timing");
plotter->Fill2D("pcz_vs_sx3pczguess", 600, -200, 200, 600, -200, 200, pczguess, pcevent.pos.Z(), "Z_Reconstruction");
if (pcevent.multi1 == 1 && pcevent.multi2 == 2)
{
plotter->Fill2D("pcz_vs_sx3pczguess_A1C2", 600, -200, 200, 600, -200, 200, pczguess, pcevent.pos.Z(), "Z_Reconstruction");
@ -1491,11 +1496,95 @@ void PCSX3ClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, s
{
plotter->Fill1D("PCZ_sx3", 800, -200, 200, pcevent.pos.Z(), "Z_Reconstruction");
}
//-----------------------Benchmarking Method for Source Runs------------------------//
if (BenchMark && aClusters.size() == 1 && cClusters.size() == 1)
{
const auto &aCl = aClusters.front();
const auto &cCl = cClusters.front();
auto vertexFromPCPoint = [&x1](const TVector3 &x2f)
{
TVector3 vf = x2f - x1;
double tm = -1.0 * (x1.X() * vf.X() + x1.Y() * vf.Y()) / (vf.X() * vf.X() + vf.Y() * vf.Y());
return TVector3(x1 + tm * vf);
};
auto fillSuite = [&](const std::string &tag, double pcz_method, const TVector3 &vtx)
{
plotter->Fill1D("Benchmark_SX3_VertexZ_" + tag, 800, -400, 400, vtx.Z(), "Benchmark_SX3");
plotter->Fill1D("Benchmark_SX3_VertexZ_" + tag + "_TC" + std::to_string(PCSX3TimeCut) + "_PC" + std::to_string(phicut), 800, -400, 400, vtx.Z(), "Benchmark_SX3");
plotter->Fill2D("Benchmark_SX3_VertexXY_" + tag, 200, -100, 100, 200, -100, 100, vtx.X(), vtx.Y(), "Benchmark_SX3");
plotter->Fill1D("Benchmark_SX3_PCZ_" + tag, 600, -200, 200, pcz_method, "Benchmark_SX3");
plotter->Fill2D("Benchmark_SX3_PCZ_vs_sx3pczguess_" + tag, 600, -200, 200, 600, -200, 200, pcz_guess_int, pcz_method, "Benchmark_SX3");
plotter->Fill2D("Benchmark_SX3_PCZresidual_vs_pczguess_" + tag, 600, -200, 200, 200, -100, 100, pczguess, pcz_method - pczguess, "Benchmark_SX3");
plotter->Fill1D("Benchmark_SX3_PCZ-sx3pczguess_" + tag, 200, -100, 100, pcz_method - pczguess, "Benchmark_SX3");
plotter->Fill1D("Benchmark_SX3_PCZ-sx3pczint_" + tag, 200, -100, 100, pcz_method - pcz_guess_int, "Benchmark_SX3");
};
auto fillVsRef = [&](const std::string &tag, double pcz_method, const TVector3 &vtx, double pcz_ref, const TVector3 &vtx_ref)
{
plotter->Fill2D("Benchmark_SX3_PCZ_" + tag + "_vs_ref", 400, -200, 200, 400, -200, 200, pcz_ref, pcz_method, "Benchmark_SX3_ref");
plotter->Fill1D("Benchmark_SX3_PCZ_" + tag + "_minus_ref", 400, -100, 100, pcz_method - pcz_ref, "Benchmark_SX3_ref");
plotter->Fill2D("Benchmark_SX3_VertexZ_" + tag + "_vs_ref", 400, -200, 200, 400, -200, 200, vtx_ref.Z(), vtx.Z(), "Benchmark_SX3_ref");
plotter->Fill1D("Benchmark_SX3_VertexZ_" + tag + "_minus_ref", 400, -100, 100, vtx.Z() - vtx_ref.Z(), "Benchmark_SX3_ref");
};
// cathode charge-division reference on this event (the A1C2 recipe)
double pcz_ref = pcfix_func.Eval(pcevent.pos.Z());
TVector3 vtx_ref = vertexFromPCPoint(TVector3(pcevent.pos.X(), pcevent.pos.Y(), pcz_ref));
// anode-only PC point, oneWire method: pseudo-wire interpolated to the
// SX3 hit's phi, with the same quality cuts as miscHistograms_oneWire
auto [apwire_bm, apSumE_bm, apMaxE_bm, apTSMaxE_bm] = pwinstance.GetPseudoWire(aCl, "ANODE");
TVector3 pc_anodeOnly = pwinstance.getClosestWirePosAtWirePhi(apwire_bm, sx3event.pos.Phi());
TVector3 vtx_anodeOnly = vertexFromPCPoint(pc_anodeOnly);
bool anodeOnlyGood = vtx_anodeOnly.Perp() <= 6.0 && vtx_anodeOnly.Z() >= -173.6 && vtx_anodeOnly.Z() <= 100 && phicut;
if (pcevent.multi1 == 1 && pcevent.multi2 == 2)
{
fillSuite("A1C2", pcz_ref, vtx_ref); // baseline with identical binning
// ---- A1C1 emulation: crossover with only the max-E cathode wire (Cmax),
// used directly with no z-model ----
auto cMaxWire = *std::max_element(cCl.begin(), cCl.end(),
[](const std::tuple<int, double, double> &w1, const std::tuple<int, double, double> &w2)
{ return std::get<1>(w1) < std::get<1>(w2); });
std::vector<std::tuple<int, double, double>> cOne = {cMaxWire};
auto [xo_a1c1, alpha_a1c1, apSumE1, cpSumE1, apMaxE1, cpMaxE1, apTSMaxE1, cpTSMaxE1] = pwinstance.FindCrossoverProperties(aCl, cOne);
if (alpha_a1c1 != 9999999 && apSumE1 != -1)
{
TVector3 vtx_a1c1 = vertexFromPCPoint(xo_a1c1);
fillSuite("A1C1", xo_a1c1.Z(), vtx_a1c1);
fillVsRef("A1C1", xo_a1c1.Z(), vtx_a1c1, pcz_ref, vtx_ref);
}
// ---- A1C0 emulation: oneWire method, cathodes ignored ----
if (anodeOnlyGood)
{
fillSuite("A1C0", pc_anodeOnly.Z(), vtx_anodeOnly);
fillVsRef("A1C0", pc_anodeOnly.Z(), vtx_anodeOnly, pcz_ref, vtx_ref);
}
}
// ---- A2C0 emulation: 2-wire anode pseudo-wire, oneWire method ----
if (pcevent.multi1 == 2 && pcevent.multi2 == 2)
{
fillSuite("A2C2", pcz_ref, vtx_ref); // reference population for A2C0
if (anodeOnlyGood)
{
fillSuite("A2C0", pc_anodeOnly.Z(), vtx_anodeOnly);
fillVsRef("A2C0", pc_anodeOnly.Z(), vtx_anodeOnly, pcz_ref, vtx_ref);
}
}
}
}
}
}
void PCQQQClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events)
void PCQQQClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, std::vector<Event> SX3_Events, std::vector<Event> PC_Events,
const std::vector<std::vector<std::tuple<int, double, double>>> &aClusters, const std::vector<std::vector<std::tuple<int, double, double>>> &cClusters)
{
for (auto pcevent : PC_Events)
{
@ -1622,10 +1711,89 @@ void PCQQQClusterAnalysis(HistPlotter *plotter, std::vector<Event> QQQ_Events, s
plotter->Fill2D("dE3_Ef_CathodeQQQR_TC1PC" + std::to_string(phicut) + "_pidlow" + std::to_string(lowercut_cath), 600, 0, 15, 800, 0, 10000, qqqEfix, pcevent.Energy2 * sinTheta_customV, "PID_dE_E");
}
if(BenchMark)
{
//-----------------------Benchmarking Method for Source Runs------------------------//
if (BenchMark && aClusters.size() == 1 && cClusters.size() == 1)
{
const auto &aCl = aClusters.front();
const auto &cCl = cClusters.front();
auto vertexFromPCPoint = [&x1](const TVector3 &x2f)
{
TVector3 vf = x2f - x1;
double tm = -1.0 * (x1.X() * vf.X() + x1.Y() * vf.Y()) / (vf.X() * vf.X() + vf.Y() * vf.Y());
return TVector3(x1 + tm * vf);
};
auto fillSuite = [&](const std::string &tag, double pcz_method, const TVector3 &vtx)
{
plotter->Fill1D("Benchmark_QQQ_VertexZ_" + tag, 800, -400, 400, vtx.Z(), "Benchmark_QQQ");
plotter->Fill1D("Benchmark_QQQ_VertexZ_" + tag + "_TC" + std::to_string(timecut) + "_PC" + std::to_string(phicut), 800, -400, 400, vtx.Z(), "Benchmark_QQQ");
plotter->Fill2D("Benchmark_QQQ_VertexXY_" + tag, 200, -100, 100, 200, -100, 100, vtx.X(), vtx.Y(), "Benchmark_QQQ");
plotter->Fill1D("Benchmark_QQQ_PCZ_" + tag, 600, -200, 200, pcz_method, "Benchmark_QQQ");
plotter->Fill2D("Benchmark_QQQ_PCZ_vs_qqqpczguess_" + tag, 600, -200, 200, 600, -200, 200, pcz_guess_int, pcz_method, "Benchmark_QQQ");
plotter->Fill2D("Benchmark_QQQ_PCZresidual_vs_pczguess_" + tag, 600, -200, 200, 200, -100, 100, pcz_guess_37, pcz_method - pcz_guess_37, "Benchmark_QQQ");
plotter->Fill1D("Benchmark_QQQ_PCZ-qqqpczguess_" + tag, 200, -100, 100, pcz_method - pcz_guess_37, "Benchmark_QQQ");
plotter->Fill1D("Benchmark_QQQ_PCZ-qqqpczint_" + tag, 200, -100, 100, pcz_method - pcz_guess_int, "Benchmark_QQQ");
};
auto fillVsRef = [&](const std::string &tag, double pcz_method, const TVector3 &vtx, double pcz_ref, const TVector3 &vtx_ref)
{
plotter->Fill2D("Benchmark_QQQ_PCZ_" + tag + "_vs_ref", 400, -200, 200, 400, -200, 200, pcz_ref, pcz_method, "Benchmark_QQQ_ref");
plotter->Fill1D("Benchmark_QQQ_PCZ_" + tag + "_minus_ref", 400, -100, 100, pcz_method - pcz_ref, "Benchmark_QQQ_ref");
plotter->Fill2D("Benchmark_QQQ_VertexZ_" + tag + "_vs_ref", 400, -200, 200, 400, -200, 200, vtx_ref.Z(), vtx.Z(), "Benchmark_QQQ_ref");
plotter->Fill1D("Benchmark_QQQ_VertexZ_" + tag + "_minus_ref", 400, -100, 100, vtx.Z() - vtx_ref.Z(), "Benchmark_QQQ_ref");
};
// cathode charge-division reference on this event (the A1C2 recipe)
double pcz_ref = pcfix_func.Eval(pcevent.pos.Z());
TVector3 vtx_ref = vertexFromPCPoint(TVector3(pcevent.pos.X(), pcevent.pos.Y(), pcz_ref));
// anode-only PC point, oneWire method: pseudo-wire interpolated to the
// QQQ hit's phi, with the same quality cuts as miscHistograms_oneWire
auto [apwire_bm, apSumE_bm, apMaxE_bm, apTSMaxE_bm] = pwinstance.GetPseudoWire(aCl, "ANODE");
TVector3 pc_anodeOnly = pwinstance.getClosestWirePosAtWirePhi(apwire_bm, qqqevent.pos.Phi());
TVector3 vtx_anodeOnly = vertexFromPCPoint(pc_anodeOnly);
bool anodeOnlyGood = vtx_anodeOnly.Perp() <= 6.0 && vtx_anodeOnly.Z() >= -173.6 && vtx_anodeOnly.Z() <= 100 && phicut;
if (pcevent.multi1 == 1 && pcevent.multi2 == 2)
{
fillSuite("A1C2", pcz_ref, vtx_ref); // baseline with identical binning
// ---- A1C1 emulation: crossover with only the max-E cathode wire (Cmax),
// used directly with no z-model ----
auto cMaxWire = *std::max_element(cCl.begin(), cCl.end(),
[](const std::tuple<int, double, double> &w1, const std::tuple<int, double, double> &w2)
{ return std::get<1>(w1) < std::get<1>(w2); });
std::vector<std::tuple<int, double, double>> cOne = {cMaxWire};
auto [xo_a1c1, alpha_a1c1, apSumE1, cpSumE1, apMaxE1, cpMaxE1, apTSMaxE1, cpTSMaxE1] = pwinstance.FindCrossoverProperties(aCl, cOne);
if (alpha_a1c1 != 9999999 && apSumE1 != -1)
{
TVector3 vtx_a1c1 = vertexFromPCPoint(xo_a1c1);
fillSuite("A1C1", xo_a1c1.Z(), vtx_a1c1);
fillVsRef("A1C1", xo_a1c1.Z(), vtx_a1c1, pcz_ref, vtx_ref);
}
// ---- A1C0 emulation: oneWire method, cathodes ignored ----
if (anodeOnlyGood)
{
fillSuite("A1C0", pc_anodeOnly.Z(), vtx_anodeOnly);
fillVsRef("A1C0", pc_anodeOnly.Z(), vtx_anodeOnly, pcz_ref, vtx_ref);
}
}
// ---- A2C0 emulation: 2-wire anode pseudo-wire, oneWire method ----
if (pcevent.multi1 == 2 && pcevent.multi2 == 2)
{
fillSuite("A2C2", pcz_ref, vtx_ref); // reference population for A2C0
if (anodeOnlyGood)
{
fillSuite("A2C0", pc_anodeOnly.Z(), vtx_anodeOnly);
fillVsRef("A2C0", pc_anodeOnly.Z(), vtx_anodeOnly, pcz_ref, vtx_ref);
}
}
}
double qqqrho = qqqevent.pos.Perp();
double qqqz = (qqqevent.pos - TVector3(0, 0, source_vertex)).Z();
double tan_theta = qqqrho / qqqz;

13
run_tr.sh
View File

@ -55,14 +55,15 @@ if [[ 1 -eq 1 ]]; then
fi
# --- Block 3: 27Al Protons+Gas Runs (15, 17-22) ---
if [[ 1 -eq 1 ]]; then
if [[ 1 -eq 0 ]]; then
export DATASET="27Al"
export PREFIX="Run_"
export OUT_DIR="Output_p"
export source_vertex=-200.0 # Source on the entrance window
echo "Starting parallel processing for 27Al proton runs..."
parallel --bar -j 6 process_run ::: 15 {17..22}
process_run 17
# parallel --bar -j 6 process_run ::: 15 {17..22}
hadd -j 4 -k ${OUT_DIR}/Al_protons.root ${OUT_DIR}/results_run0{17..22}.root
fi
@ -77,17 +78,17 @@ if [[ 1 -eq 0 ]]; then
fi
# --- Block 5: 17F Alpha Run with Gas (18-21) ---
if [[ 1 -eq 0 ]]; then
if [[ 1 -eq 1 ]]; then
export DATASET="17F"
export PREFIX="SourceRun_"
export OUT_DIR="Output_a"
echo "Processing 17F alpha runs with dynamic source vertices..."
# Running sequentially since the source_vertex variable changes per run
# export source_vertex=53.44; process_run 18
export source_vertex=53.44; process_run 18
export source_vertex=14.24; process_run 19
# export source_vertex=-24.96; process_run 20
# export source_vertex=-73.96; process_run 21
export source_vertex=-24.96; process_run 20
export source_vertex=-73.96; process_run 21
fi
# --- Block 6: 17F Proton Data ---

20
scratch/plot_slope_scan.C
View File

@ -25,8 +25,10 @@ void plot_slope_scan()
// 0.82, 0.84, 0.86, 0.88, 0.90};
// const int N = 25;
double slopes[] = {0.42, 0.44, 0.46, 0.48, 0.50, 0.52, 0.54, 0.56, 0.58, 0.60, 0.62, 0.64};
const int N = 12; // Updated to 14 to match the size of your slopes array
// double slopes[] = {0.42, 0.44, 0.46, 0.48, 0.50, 0.52, 0.54, 0.56, 0.58, 0.60, 0.62, 0.64};
// const int N = 12; // Updated to 14 to match the size of your slopes array
const int N = 1; // Updated to 14 to match the size of your slopes array
double slopes[] = {0.52};
int runs[] = {9, 12, 18, 19, 20, 21};
const int NRUNS = 6;
@ -272,12 +274,12 @@ void plot_slope_scan()
mg1->Draw("A");
double bestSlope = 0, bestStdDev = 1e9;
if (gStdDevRun_sx3[0]->GetN() > 0)
if (gStdDevRun_sx3[3]->GetN() > 0)
{
for (int i = 0; i < gStdDevRun_sx3[0]->GetN(); i++)
for (int i = 0; i < gStdDevRun_sx3[3]->GetN(); i++)
{
double x, y;
gStdDevRun_sx3[0]->GetPoint(i, x, y);
gStdDevRun_sx3[3]->GetPoint(i, x, y);
if (y > 0 && y < bestStdDev)
{
bestStdDev = y;
@ -288,12 +290,12 @@ void plot_slope_scan()
lb->SetLineColor(kRed);
lb->SetLineStyle(kDashed);
lb->Draw();
printf(">>> Best slope (Run %d) = %.2f StdDev=%.2f mm\n", runs[0], bestSlope, bestStdDev);
printf(">>> Best slope (Run %d) = %.2f StdDev=%.2f mm\n", runs[3], bestSlope, bestStdDev);
}
// --- Pad 2: Mean ---
pad1_grid->cd(2);
gPad->SetGrid(1, 1);
// gPad->SetGrid(1, 1);
TMultiGraph *mg2 = new TMultiGraph("mg_mean", "Mean of Residuals vs Slope;Slope;Mean Offset (mm)");
for (int ir = 0; ir < NRUNS; ir++)
@ -358,7 +360,7 @@ void plot_slope_scan()
TPad *pad2_grid = new TPad("pad2_grid", "Grid", 0.0, 0.0, 1.0, 0.92);
pad2_grid->Draw();
pad2_grid->Divide(5, 5);
pad2_grid->Divide(3,4);
for (int i = 0; i < N; i++)
{
@ -453,7 +455,7 @@ void plot_slope_scan()
TPad *pad3_grid = new TPad("pad3_grid", "Grid", 0.0, 0.0, 1.0, 0.92);
pad3_grid->Draw();
pad3_grid->Divide(5, 5);
pad3_grid->Divide(3,4);
for (int i = 0; i < N; i++)
{