diff --git a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
index 32f00bb..416e81a 100644
--- a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
+++ b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
@@ -52,7 +52,7 @@ public class Spreadsheet {
 
 	public String get(String cellName) {
 		cellName = cellName.toUpperCase();
-		return get(getRow(cellName), getCol(cellName));
+		return get(getRow(cellName)-1, getCol(cellName)-1);
 	}
 
 	public String getCellName(int row, int col) {
@@ -70,7 +70,7 @@ public class Spreadsheet {
 
 	public void put(String cellName, String value) {
 		cellName = cellName.toUpperCase();
-		put(getRow(cellName), getCol(cellName), value);
+		put(getRow(cellName)-1, getCol(cellName)-1, value);
 	}
 
 	private int getCol(String cellName) {
@@ -306,10 +306,10 @@ public class Spreadsheet {
 		Arrays.fill(frequency,1);
 		ArrayList<Double> relativeFrequency = new ArrayList<>();
 		double mem = 0;
-
+		System.out.println(cellNames);
 		for(int i = 0; i< cellNames.size(); i++) {
 			for(int t = 0; t<cellNames.size(); t++){
-				if(!((get(cellNames.get(i)).isEmpty())&&(get(cellNames.get(t)).isEmpty()))&&(t!=i)&&(Double.parseDouble(get(cellNames.get(i))))==(Double.parseDouble(get(cellNames.get(t))))){
+				if((t!=i)&&(!get(cellNames.get(i)).isEmpty())&&(get(cellNames.get(i)).equals(get(cellNames.get(t))))){
 					cellNames.remove(t);
 					frequency[i] ++;
 					t = 0;
@@ -317,10 +317,11 @@ public class Spreadsheet {
 			}
 		}
 		//delete all duplicates
-
+		System.out.println(cellNames);
 		for(int i = 0; i< cellNames.size(); i++)
 			relativeFrequency.add(i,frequency[i]/copyCellNames.size());
-
+		System.out.println(relativeFrequency);
+		System.out.println(avg);
 
 		if(get(cellNames.get(0)).isEmpty())
 			mem = ((0 - avg)*(0 - avg))
@@ -423,13 +424,13 @@ public class Spreadsheet {
 	private long evaluateOperator(long result, long currentOperand, String currentOperator) {
 		switch (currentOperator) {
 			case "+":
-				return result + currentOperand;
+				return (result + currentOperand);
 			case "-":
-				return result - currentOperand;
+				return (result - currentOperand);
 			case "*":
-				return result * currentOperand;
+				return (result * currentOperand);
 			case "/":
-				return result / currentOperand;
+				return (result / currentOperand);
 			default:
 				throw new IllegalArgumentException("Invalid operator: " + currentOperator);
 		}