title: Grouped Bar graph Matlab
body: <p>I'm trying to make a grouped plot bar in matlab, as the one you can see in this example:</p>
  
  <p><a href="https://i.stack.imgur.com/hIkvb.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hIkvbm.jpg" alt="Grouped Plot Bar example"></a></p>
  
  <p>Do you know how it could be made? This is all I made till now, and it doesn't work as I want.</p>
  
  <pre><code>y = [Cerrillos; Talagante];
  bar(y)
  
  title('Concentraciones 2015-2016')
  xlabel('Estaciones')
  ylabel('µg/m³')
  </code></pre>