title: amCharts: Always show 0 on value axis and enable negative velues to be displayed
body: <p>I have got this silly problem.</p>
  
  <p>I am creating a simple serial chart, displaying columns for two simple data series. The values are quite clse to eachother so amCharts decides to hide the 0 value axis and dislay only the relevant data. This is all good, but the thing is that I need to be able compare my columns visually. I also want to hide the labels on the value axis at some point.</p>
  
  <p>Generally what I get now is this:
  <a href="https://i.stack.imgur.com/32Dst.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/32Dst.jpg" alt="enter image description here"></a></p>
  
  <p>As you can see, value axis starts counting from 22.5. I need it to always start counting from 0, so I can compare the columns relatively to each other in a visual way. I know I can set the <code>minimum</code> propert of the value axis to 0 to achieve my desired result. But when I set any of the values to be negative, it does not display on the chart.</p>
  
  <p>This is what I get with the <code>minimum</code> property set to 0 and one of the data points set o a negative value:</p>
  
  <p><a href="https://i.stack.imgur.com/NrCal.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NrCal.jpg" alt="enter image description here"></a></p>
  
  <p>Here is a demo of my problem:
  <a href="http://jsfiddle.net/gregzx/scyhwws4/1/" rel="nofollow noreferrer">http://jsfiddle.net/gregzx/scyhwws4/1/</a>
  <code>minimum</code> set to <code>0</code> and one of the values set to a negative value.</p>
  
  <p>Summing up: I need to always display the 0 value on the value axis AND be able to display negative values. Any hints will be much appreciated!</p>