NVD3 Bar Chart Constant Colors

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    <style>
    .rChart {
      display: block
      margin: auto auto;
      width: 100%;
      height: 400px;
    }
    /*
    body {
      margin-top: 60px;
    }
    */
    </style>
    
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            <div id='chart1118431a8a4e3' class='rChart nvd3'>
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<pre><code class='r'>data(cars) 
speedTableVec &lt;- table(cars$speed) 
speedTable &lt;- data.frame(speedTableVec)
require(rCharts)
n1 &lt;- nPlot(Freq ~ Var1, data = speedTable, type=&quot;discreteBarChart&quot;)
n1$chart(color = &quot;#! function(d){ return 'blue'} !#&quot;)
n1
</code></pre>
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      drawchart1118431a8a4e3()
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    function drawchart1118431a8a4e3(){  
      var opts = {
 "dom": "chart1118431a8a4e3",
"width":    700,
"height":    400,
"x": "Var1",
"y": "Freq",
"type": "discreteBarChart",
"id": "chart1118431a8a4e3" 
},
        data = [
 {
 "Var1": "4",
"Freq": 2 
},
{
 "Var1": "7",
"Freq": 2 
},
{
 "Var1": "8",
"Freq": 1 
},
{
 "Var1": "9",
"Freq": 1 
},
{
 "Var1": "10",
"Freq": 3 
},
{
 "Var1": "11",
"Freq": 2 
},
{
 "Var1": "12",
"Freq": 4 
},
{
 "Var1": "13",
"Freq": 4 
},
{
 "Var1": "14",
"Freq": 4 
},
{
 "Var1": "15",
"Freq": 3 
},
{
 "Var1": "16",
"Freq": 2 
},
{
 "Var1": "17",
"Freq": 3 
},
{
 "Var1": "18",
"Freq": 4 
},
{
 "Var1": "19",
"Freq": 3 
},
{
 "Var1": "20",
"Freq": 5 
},
{
 "Var1": "22",
"Freq": 1 
},
{
 "Var1": "23",
"Freq": 1 
},
{
 "Var1": "24",
"Freq": 4 
},
{
 "Var1": "25",
"Freq": 1 
} 
]
  
      var data = d3.nest()
        .key(function(d){
          return opts.group === undefined ? 'main' : d[opts.group]
        })
        .entries(data)
      
      nv.addGraph(function() {
        var chart = nv.models[opts.type]()
          .x(function(d) { return d[opts.x] })
          .y(function(d) { return d[opts.y] })
          .width(opts.width)
          .height(opts.height)
         
        chart
  .color( function(d){ return 'blue'} )

d3.select("#" + opts.id)
        .append('svg')
        .datum(data)
        .transition().duration(500)
        .call(chart);

nv.utils.windowResize(chart.update);
       return chart;
      });
    };
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Modified http://nvd3.org/lib/fisheye.js to a secure url

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