diff --git a/include/BM1DProcess.hh b/include/BM1DProcess.hh
index ba91c09..6b52b96 100644
--- a/include/BM1DProcess.hh
+++ b/include/BM1DProcess.hh
@@ -10,22 +10,19 @@
 
 class BM1DProcess {
 public:
-  BM1DProcess(Int_t n); //n is the number of steps
+  BM1DProcess(); 
   ~BM1DProcess();
   
-  void SetP0(Double_t p0_new){p0 = p0_new;}
-  void SetP1(Double_t p1_new){p1 = p1_new;}
-
-  void Init();
-  void Run();
+  void Run(int nSteps, int nRuns, double p0, double p1);
+  void Run(int nSteps, int nRuns, double p0, double mu, double sigma);
+  void Run(int nSteps, int nRuns, double p0, double x1, double x2, double mu1, double sigma1, double mu2,  double sigma2);
   
   std::vector<Double_t> GetT(){return t;}
   std::vector<Double_t> GetX(){return x;}
 
  private:
-  Int_t nSteps;
-  Double_t p0,p1,p2,p3,p4;
   TRandom* randomGenerator;
+  TRandom* randomGeneratorGauss;
   Double_t rand1;
   std::vector<Double_t> t;
   std::vector<Double_t> x;
diff --git a/src/BM1DProcess.cc b/src/BM1DProcess.cc
index 364a117..7a907c4 100644
--- a/src/BM1DProcess.cc
+++ b/src/BM1DProcess.cc
@@ -1,40 +1,113 @@
 #include "BM1DProcess.hh"
 
-BM1DProcess::BM1DProcess(Int_t nP) : 
-  nSteps (nP), p0(0.5), p1(0.3)
+BM1DProcess::BM1DProcess() 
 {
   randomGenerator = new TRandom();
+  randomGeneratorGauss = new TRandom();
 }
 
 BM1DProcess::~BM1DProcess()
 {
-  ;
+  delete randomGenerator;
+  delete randomGeneratorGauss;
 }
 
-void BM1DProcess::Init(){
-  t.push_back(0.0);  //let's start at t=0, x=0, you can change it if you vant, please use Set methods
-  x.push_back(0.0);
+
+void BM1DProcess::Run(int nRuns, int nSteps, double p0, double p1)
+{
+	for(int i = 0; i < nRuns; i++) //multiple runs
+		{
+			t.push_back(0.0);  //let's start at t=0, x=0, you can change it if you vant, please use Set methods
+			x.push_back(0.0);
+			
+			for(int ii = 0; ii < nSteps ; ii++)
+				{
+				
+					rand1 = randomGenerator->Uniform();
+						
+					if(rand1 < p0)	//step in time, but no step in x
+						{  
+							t.push_back(t.back() + 1);
+							x.push_back(x.back());
+						}
+					
+					else	//step left or right
+						{	
+							if(rand1 < p0 + p1)
+								{
+									t.push_back(t.back()+1);
+									x.push_back(x.back()+1); //one step right
+								}
+							else
+								{
+									t.push_back(t.back() + 1);
+									x.push_back(x.back() - 1); //one step left
+								}			
+						}
+				}						
+		}
 }
 
-void BM1DProcess::Run(){
-  for (Int_t i = 1;i < nSteps;i++)
-    {
-      rand1 = randomGenerator->Uniform();
-	if(rand1 < p0) {  //step in time, but no step in x
-	  t.push_back(t[i-1] + 1);
-	  x.push_back(x[i-1]);
-	}
-	else {//step left or right
-	  if(rand1 < p0 + p1)
-	    {
-	      t.push_back(t[i-1]+1);
-	      x.push_back(x[i-1]+1); //one step right
-	    }
-	  else
-	    {
-	      t.push_back(t[i-1]+1);
-	      x.push_back(x[i-1]-1); //one step left
-	    }
-	}
-    }
+void BM1DProcess::Run(int nRuns, int nSteps, double p0, double mu, double sigma)
+{
+	for(int i = 0; i < nRuns; i++) //multiple runs
+		{
+			t.push_back(0.0);  //let's start at t=0, x=0, you can change it if you vant, please use Set methods
+			x.push_back(0.0);
+			
+			for(int ii = 0; ii < nSteps ; ii++)
+				{
+					rand1 = randomGenerator->Uniform();
+						
+					if(rand1 < p0)	//step in time, but no step in x
+						{  
+							t.push_back(t.back() + 1);
+							x.push_back(x.back());
+						}
+					
+					else	//step left or right
+						{	
+							double randGauss = randomGeneratorGauss -> Gaus(mu,sigma);
+							t.push_back(t.back() + 1);
+							x.push_back(x.back() + randGauss); //one step right
+						}
+				}						
+		}
 }
+
+void BM1DProcess::Run(int nRuns, int nSteps, double p0, double x1, double x2, double mu1, double sigma1, double mu2, double sigma2)
+{
+	for(int i = 0; i < nRuns; i++) //multiple runs
+		{
+			t.push_back(0.0);  //let's start at t=0, x=0, you can change it if you vant, please use Set methods
+			x.push_back(0.0);
+			
+			double randGauss;
+			
+			for(int ii = 0; ii < nSteps ; ii++)
+				{
+					rand1 = randomGenerator->Uniform();
+					
+					if(rand1 < p0)	//step in time, but no step in x
+						{  
+							t.push_back(t.back() + 1);
+							x.push_back(x.back());
+						}
+					
+					else	//step left or right
+						{	
+							if(x.back() < x2 && x.back() > x1)
+								{
+									randGauss = randomGeneratorGauss -> Gaus(mu1,sigma1);
+								}
+							else 
+								{
+									randGauss = randomGeneratorGauss -> Gaus(mu2,sigma2);
+								}	
+						
+							t.push_back(t.back() + 1);
+							x.push_back(x.back() + randGauss); //one step right
+						}
+				}						
+		}
+}
\ No newline at end of file