anchor.diff:          .tickValues(d3.range(17));
   
       var y_xis = canvas.append('g')
  -              .attr("transform", "translate(150, 0)")
  +              .attr("transform", "translate(150, 180)")
                 .attr('id','yaxis')
                 .call(yAxis);
   
  
positive.code:             .range([0,722]);
  
      var yscale = d3.scale.linear()
              .domain([0,categories.length - 1])
              .range([0,480]);
  
      var colorScale = d3.scale.quantize()
              .domain([0,categories.length])
  
negative.code: <script>
  var categories= ['Culture', 'Instructional Strageties', 'Culture', 'Instructional Strageties'];
  
      var rating = [1, 2, 3, 4];
  
      var colors = ['#0000b4','#0082ca','#0094ff','#0d4bcf','#0066AE','#074285','#00187B','#285964','#405F83','#416545','#4D7069','#6E9985','#7EBC89','#0283AF','#79BCBF','#99C19E'];
  
  