diff --git a/include/Lattice.hh b/include/Lattice.hh
index 5cab229..5f35345 100644
--- a/include/Lattice.hh
+++ b/include/Lattice.hh
@@ -35,6 +35,8 @@ public:
 	
 	MuSigma GetMuSigma(Int_t index);
 	
+	Int_t GetLatticeSize(); //number of points in the lattice
+	
 	
 private:
 	Int_t _nop; //number of points in [mu-_percent; mu+_percent]
@@ -54,6 +56,9 @@ private:
   	myLattice->SetNop(10);
   	myLattice->SetLattice(myAnalyse->GetMu(), myAnalyse->GetSigma());
   	
+  	mu_value = myLattice->GetMuSigma(i).mu;
+  	sigma_value = myLattice->GetMuSigma(i).sigma;
+  	
 ************************************************************************/
 
 #endif
diff --git a/src/Lattice.cc b/src/Lattice.cc
index b214aff..d903869 100644
--- a/src/Lattice.cc
+++ b/src/Lattice.cc
@@ -1,7 +1,7 @@
 #include "Lattice.hh"
 
 
-Lattice::Lattice() : _nop(100), _percent(0.2){;}
+Lattice::Lattice() : _nop(10), _percent(0.2){;}
 
 Lattice::~Lattice(){;}
 
@@ -28,6 +28,11 @@ MuSigma Lattice::GetMuSigma(Int_t index){
 
 }
 
+Int_t Lattice::GetLatticeSize(){
+	
+	return ms_vect.size();
+
+}
 
 void Lattice::SetLattice(Double_t mu_est, Double_t sigma_est){
 
@@ -65,12 +70,10 @@ void Lattice::SetLattice(Double_t mu_est, Double_t sigma_est){
 				loc_sigma += ds;
 				}
 				
-			loc_mu += dm;
-			
-			
+			loc_mu += dm;	
 			
 		}
-
+	
 }