diff --git a/framework/plotter.py b/framework/plotter.py
index 85f2a0117126c..2fe63bf14bdec 100644
--- a/framework/plotter.py
+++ b/framework/plotter.py
@@ -85,8 +85,8 @@ def plotStack(self):
             c.SetTicks(0, 1)
             c.cd()
 
-            hs.Draw("HIST")
-            hdata.Draw("same")
+            hdata.Draw("")
+            hs.Draw("HIST same")
 
             legend.Draw()
 
diff --git a/wmass/controlPlots/controlPlots.py b/wmass/controlPlots/controlPlots.py
index 3ac38428ba9fd..ef6ef8157fecc 100644
--- a/wmass/controlPlots/controlPlots.py
+++ b/wmass/controlPlots/controlPlots.py
@@ -30,7 +30,9 @@ def run(self,d):
         runs = RDF('Runs', self.file)
 
         if self.dataType == 'mc': 
-            genEventSumw = runs.Mean("genEventSumw").GetValue()
+            genEventSumw = runs.Sum("genEventSumw").GetValue()
+            print (1.*self.xsec)/genEventSumw, 'lumiweight', genEventSumw, 'genEventSumw', self.xsec, 'xsec'
+            #genEventSumw=1
 
         self.d = d.Filter(self.selections[self.dataType]['cut'])
 
@@ -38,9 +40,8 @@ def run(self,d):
 
         if self.dataType == 'mc':
             
-            self.d = self.d.Define('lumiweight', '{L}/({genEventSumw}/{xsec})'.format(L=self.targetLumi, genEventSumw = genEventSumw, xsec = self.xsec))\
-            .Define("Generator_weight_norm","Generator_weight/fabs(Generator_weight)")\
-            .Define('totweight', 'lumiweight*Generator_weight_norm*{}'.format(self.selections[self.dataType]['weight']))
+            self.d = self.d.Define('lumiweight', '({L}*{xsec})/({genEventSumw})'.format(L=self.targetLumi, genEventSumw = genEventSumw, xsec = self.xsec))\
+            .Define('totweight', 'lumiweight*Generator_weight*{}'.format(self.selections[self.dataType]['weight']))
 
         else:
             self.d = self.d.Define('totweight', '1')
diff --git a/wmass/controlPlots/defs.py b/wmass/controlPlots/defs.py
index 6adf596bb7069..eaa34e395b2af 100644
--- a/wmass/controlPlots/defs.py
+++ b/wmass/controlPlots/defs.py
@@ -111,6 +111,7 @@
                 'variables': { 
                                 'corrected_pt': ('muon pt', 100, 20, 100), # variable to plot: (title of x axis, number of bins, xLow, xUp)
                                 'eta': ('muon eta', 100, -2.5, 2.5),
+                                #'corrected_MET_nom_mt':('mt',100, 30, 100), #not working in this version of samples
 
         },
 
@@ -129,7 +130,7 @@
 ROOT.ROOT.EnableImplicitMT(48)
 
 from controlPlots import *
-"""
+
 inputDir = '/gpfs/ddn/cms/user/bianchi/NanoAOD2016-TEST/'
 
 # mc samples
@@ -160,10 +161,10 @@
 p.branch(nodeToStart = 'input', nodeToEnd = 'controlPlotsPlus',outputFile="data_plus.root", modules = [controlPlots(selections = selections['signalplus'], variables = variables, dataType = 'data', xsec = 1, file = inputDir+'SingleMuon'+'/tree.root')])
 p.branch(nodeToStart = 'input', nodeToEnd = 'controlPlotsMinus',outputFile="data_minus.root", modules = [controlPlots(selections = selections['signalminus'], variables = variables, dataType = 'data', xsec = 1, file = inputDir+'SingleMuon'+'/tree.root')])
 p.getOutput()
-"""
+
 from plotter import plotter
 
-plt = plotter(outdir= 'TESTstack', folder = 'TEST', fileList = ['W_plus.root', 'DY_plus.root', 'ttbar_plus.root', 'diboson_plus.root', 'QCD_plus.root', 'data_plus.root'], norm = 2.7)
+plt = plotter(outdir= 'TESTstack', folder = 'TEST', fileList = ['DY_plus.root', 'ttbar_plus.root', 'diboson_plus.root','W_plus.root','QCD_plus.root', 'data_plus.root'], norm = 2.7)
 plt.plotStack()