Fix name of fsam histogram

benchmarks/barrel_ecal/scripts/emcal_barrel_particles_analysis.cxx

@@ -121,7 +121,7 @@ void emcal_barrel_particles_analysis(std::string particle_name = "electron", boo
   auto hfsamImg = d1.Histo1D(
       {"hfsamImg", "Sampling Fraction; Sampling Fraction; Events", 400, 0.0, 0.2},
       "fsamImg");
-  auto hfsam = d1.Histo1D(
+  auto hfsamScFi = d1.Histo1D(
       {"hfsamScFi", "Sampling Fraction; Sampling Fraction; Events", 400, 0.0, 0.2},
       "fsamScFi");
 
@@ -193,7 +193,7 @@ void emcal_barrel_particles_analysis(std::string particle_name = "electron", boo
     TF1 *gaus = h->GetFunction("gaus");
     gaus->SetLineWidth(2);
     gaus->SetLineColor(kRed); 
-    save_canvas(c4,"fsamImg",particle_name);
+    save_canvas(c5,"fsamImg",particle_name);
   }
 
   {
@@ -208,7 +208,7 @@ void emcal_barrel_particles_analysis(std::string particle_name = "electron", boo
     TF1 *gaus = h->GetFunction("gaus");
     gaus->SetLineWidth(2);
     gaus->SetLineColor(kRed); 
-    save_canvas(c4,"fsamScFi",particle_name);
+    save_canvas(c6,"fsamScFi",particle_name);
   }
 
   j[particle_name] = {