anchor.diff:      }
       var min_y = Math.min.apply(Math, tmp_yData);
       var max_y = Math.max.apply(Math, tmp_yData);
  -    var edge_y = (max_y - min_y) * 0.1;
  +    var edge_y = (max_y - min_y) * 0.2;
       //-------------------tmp---------------------------
   
       //Define scale functions
       var padding = 200;
       var xScale = d3.scale.linear()
               .domain([min_x - edge_x, max_x + edge_x])
  -            .range([80, 680]);
  +            .range([100, 600]);
       var yScale = d3.scale.linear()
               .domain([min_y - edge_y, max_y + edge_y])
  -            .range([680, 80]);
  +            .range([520, 20]);
       //Define Axis
       var xAxis = d3.svg.axis()
               .scale(xScale)
  
positive.code:     }
  </style>
  
  <%
      String cancer_study_id = (String)request.getParameter("cancer_study_id");
      String case_set_id = (String)request.getParameter("case_set_id");
  
negative.code:     }
      var min_x = Math.min.apply(Math, tmp_xData);
      var max_x = Math.max.apply(Math, tmp_xData);
      var edge_x = (max_x - min_x) * 0.2;
  
      var tmp_yData = [];
      var tmp_yIndex = 0;
  