text: 
  nv.models.discreteBarChart = function() {
  
    //============================================================
    // Public Variables with Default Settings
    //------------------------------------------------------------
  
    var discretebar = nv.models.discreteBar()
      , xAxis = nv.models.axis()
      , yAxis = nv.models.axis()
      ;
  
    var margin = {top: 15, right: 10, bottom: 50, left: 60}
      , width = null
      , height = null
      , color = nv.utils.getColor()
      , staggerLabels = false
      , tooltips = true
      , tooltip = function(key, x, y, e, graph) {
          return '<h3>' + x + '</h3>' +
                 '<p>' +  y + '</p>'
        }
      , x
      , y
      , noData = "No Data Available."
      , dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'beforeUpdate')
      ;
  
    xAxis
      .orient('bottom')
      .highlightZero(false)
      .showMaxMin(false)
      .tickFormat(function(d) { return d })
      ;
    yAxis
      .orient('left')
      .tickFormat(d3.format(',.1f'))
      ;
  
    //============================================================
  
  
    //============================================================
    // Private Variables
    //------------------------------------------------------------
  
    var showTooltip = function(e, offsetElement) {
      var left = e.pos[0] + ( offsetElement.offsetLeft || 0 ),
          top = e.pos[1] + ( offsetElement.offsetTop || 0),
          x = xAxis.tickFormat()(discretebar.x()(e.point, e.pointIndex)),
          y = yAxis.tickFormat()(discretebar.y()(e.point, e.pointIndex)),
          content = tooltip(e.series.key, x, y, e, chart);
  
      nv.tooltip.show([left, top], content, e.value < 0 ? 'n' : 's', null, offsetElement);
    };
  
    //============================================================
  
  
    function chart(selection) {
      selection.each(function(data) {
        var container = d3.select(this),
            that = this;
  
        var availableWidth = (width  || parseInt(container.style('width')) || 960)
                               - margin.left - margin.right,
            availableHeight = (height || parseInt(container.style('height')) || 400)
                               - margin.top - margin.bottom;
  
  
        chart.update = function() { dispatch.beforeUpdate(); selection.transition().call(chart); };
        chart.container = this;
  
  
        //------------------------------------------------------------
        // Display No Data message if there's nothing to show.
  
        if (!data || !data.length || !data.filter(function(d) { return d.values.length }).length) {
          var noDataText = container.selectAll('.nv-noData').data([noData]);
  
          noDataText.enter().append('text')
            .attr('class', 'nvd3 nv-noData')
            .attr('dy', '-.7em')
            .style('text-anchor', 'middle');
  
          noDataText
            .attr('x', margin.left + availableWidth / 2)
            .attr('y', margin.top + availableHeight / 2)
            .text(function(d) { return d });
  
          return chart;
        } else {
          container.selectAll('.nv-noData').remove();
        }
  
        //------------------------------------------------------------
  
  
        //------------------------------------------------------------
        // Setup Scales
  
        x = discretebar.xScale();
        y = discretebar.yScale();
  
        //------------------------------------------------------------
  
  
        //------------------------------------------------------------
        // Setup containers and skeleton of chart
  
        var wrap = container.selectAll('g.nv-wrap.nv-discreteBarWithAxes').data([data]);
        var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-discreteBarWithAxes').append('g');
        var defsEnter = gEnter.append('defs');
        var g = wrap.select('g');
  
        gEnter.append('g').attr('class', 'nv-x nv-axis');
        gEnter.append('g').attr('class', 'nv-y nv-axis');
        gEnter.append('g').attr('class', 'nv-barsWrap');
  
        g.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
  
        //------------------------------------------------------------
  
  
        //------------------------------------------------------------
        // Main Chart Component(s)
  
        discretebar
          .width(availableWidth)
          .height(availableHeight);
  
  
        var barsWrap = g.select('.nv-barsWrap')
            .datum(data.filter(function(d) { return !d.disabled }))
  
        d3.transition(barsWrap).call(discretebar);
  
        //------------------------------------------------------------
  
  
  
        defsEnter.append('clipPath')
            .attr('id', 'nv-x-label-clip-' + discretebar.id())
          .append('rect');
  
        g.select('#nv-x-label-clip-' + discretebar.id() + ' rect')
            .attr('width', x.rangeBand() * (staggerLabels ? 2 : 1))
            .attr('height', 16)
            .attr('x', -x.rangeBand() / (staggerLabels ? 1 : 2 ));
  
  
        //------------------------------------------------------------
        // Setup Axes
  
        xAxis
          .scale(x)
          .ticks( availableWidth / 100 )
          .tickSize(-availableHeight, 0);
  
        g.select('.nv-x.nv-axis')
            .attr('transform', 'translate(0,' + (y.range()[0] + ((discretebar.showValues() && y.domain()[0] < 0) ? 16 : 0)) + ')');
        //d3.transition(g.select('.nv-x.nv-axis'))
        g.select('.nv-x.nv-axis').transition().duration(0)
            .call(xAxis);
  
  
        var xTicks = g.select('.nv-x.nv-axis').selectAll('g');
  
        if (staggerLabels) {
          xTicks
              .selectAll('text')
              .attr('transform', function(d,i,j) { return 'translate(0,' + (j % 2 == 0 ? '5' : '17') + ')' })
        }
  
        yAxis
          .scale(y)
          .ticks( availableHeight / 36 )
          .tickSize( -availableWidth, 0);
  
        d3.transition(g.select('.nv-y.nv-axis'))
            .call(yAxis);
  
        //------------------------------------------------------------
  
  
        //============================================================
        // Event Handling/Dispatching (in chart's scope)
        //------------------------------------------------------------
  
        dispatch.on('tooltipShow', function(e) {
          if (tooltips) showTooltip(e, that.parentNode);
        });
  
        //============================================================
  
  
      });
  
      return chart;
    }
  
    //============================================================
    // Event Handling/Dispatching (out of chart's scope)
    //------------------------------------------------------------
  
    discretebar.dispatch.on('elementMouseover.tooltip', function(e) {
      e.pos = [e.pos[0] +  margin.left, e.pos[1] + margin.top];
      dispatch.tooltipShow(e);
    });
  
    discretebar.dispatch.on('elementMouseout.tooltip', function(e) {
      dispatch.tooltipHide(e);
    });
  
    dispatch.on('tooltipHide', function() {
      if (tooltips) nv.tooltip.cleanup();
    });
  
    //============================================================
  
  
    //============================================================
    // Expose Public Variables
    //------------------------------------------------------------
  
    // expose chart's sub-components
    chart.dispatch = dispatch;
    chart.discretebar = discretebar;
    chart.xAxis = xAxis;
    chart.yAxis = yAxis;
  
    d3.rebind(chart, discretebar, 'x', 'y', 'xDomain', 'yDomain', 'forceX', 'forceY', 'id', 'showValues', 'valueFormat');
  
    chart.margin = function(_) {
      if (!arguments.length) return margin;
      margin.top    = typeof _.top    != 'undefined' ? _.top    : margin.top;
      margin.right  = typeof _.right  != 'undefined' ? _.right  : margin.right;
      margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
      margin.left   = typeof _.left   != 'undefined' ? _.left   : margin.left;
      return chart;
    };
  
    chart.width = function(_) {
      if (!arguments.length) return width;
      width = _;
      return chart;
    };
  
    chart.height = function(_) {
      if (!arguments.length) return height;
      height = _;
      return chart;
    };
  
    chart.color = function(_) {
      if (!arguments.length) return color;
      color = nv.utils.getColor(_);
      discretebar.color(color);
      return chart;
    };
  
    chart.staggerLabels = function(_) {
      if (!arguments.length) return staggerLabels;
      staggerLabels = _;
      return chart;
    };
  
    chart.tooltips = function(_) {
      if (!arguments.length) return tooltips;
      tooltips = _;
      return chart;
    };
  
    chart.tooltipContent = function(_) {
      if (!arguments.length) return tooltip;
      tooltip = _;
      return chart;
    };
  
    chart.noData = function(_) {
      if (!arguments.length) return noData;
      noData = _;
      return chart;
    };
  
    //============================================================
  
  
    return chart;
  }
  