title: Equal - depth binning- whether it is just grouping data into k groups
body: <p>A small confusion on equal - depth or equal frequency binning</p>
  
  <p>Equal depth binning says that - It divides the range into N intervals, each containing approximately same number of samples</p>
  
  <p>Lets take a small portion of iris data</p>
  
  <pre><code>5.1,3.5,1.4,0.2,Iris-setosa
  4.9,3.0,1.4,0.2,Iris-setosa
  4.7,3.2,1.3,0.2,Iris-setosa
  4.6,3.1,1.5,0.2,Iris-setosa
  5.0,3.6,1.4,0.2,Iris-setosa
  </code></pre>
  
  <p>If I need to bin my 1st column, what will be the results?
  Whether it is just grouping the data or it includes some calculation like equal width binning.</p>
  
  <p>What happens if number of elements to be binned is an odd number. How will I bin equally?</p>