title: d3.v3 scatterplot with all circles the same radius
body: <p>Every example I have found shows all of the scatter plot points to be of random radii. Is it possible to have them all the same size? If I try to statically set the radius all of the circles will be very small (I'm assuming the default radius).  However, if I use Math.random() as in most examples there are circles large and small.  I want all the circles to be large. Is there a way to do that? Here's the code snippet forming the graph data using Math.random() (this works fine for some reason):</p>
  
  <pre><code>function scatterData(xData, yData) 
  {
    var data = [];
  
    for (var i = 0; i &lt; seismoNames.length; i++) 
    {
      data.push({
        key: seismoNames[i],
        values: []
      });
  
      var xVals=""+xData[i];
      xVals=xVals.split(",");
      var yVals=""+yData[i];
      yVals=yVals.split(",");
  
      for (var j = 0; j &lt; xVals.length; j++) 
      {
        data[i].values.push({
          x: xVals[j], 
          y: yVals[j], 
          size: Math.random()
        });
  
      }
    }
  
    return data;
  }
  </code></pre>
  
  <p>Math.random() spits out values between 0 and 1 such as 0.164259538891095 and 0.9842195005008699. I have tried putting these as static values in the 'size' attribute, but no matter what the circles are always really small.  Is there something I'm missing?  </p>