public String toString() {
		String returnString = "";
		//go to length-1, since 
		for(int i = 1; i < assignment.length; i++) {
			if(assignment[i]) {
				returnString = returnString.concat(" " + i + "\t");
			} else {
				returnString = returnString.concat("-" + i + "\t");
			}
		}
		
		returnString = returnString.concat("\t\t" + getProbability());
		
		return returnString;
	}