title: 2grouped bar plot in R
body: <p>I am trying to create a graph with months that represent the seasons, that every seasons will be in different color with the legend below.</p>
  
  <pre><code>seasons: December, January, February- Winter
           March, April, May- Spring
           June, July, August- Summer
           September, October, November- Autumn 
  </code></pre>
  
  <p>and the the Airports will be in different texture.</p>
  
  <pre><code>Airports: EWR, JFK, LGA
  </code></pre>
  
  <p>My data is:</p>
  
  <pre><code>     1  2  3  4  5  6  7  8  9 10 11 12
    EWR 24 23 28 26 27 31 30 23 14 17 16 33
    JFK 16 21 20 21 22 28 32 23 14 13 12 25
    LGA 14 16 18 20 19 26 26 20 13 15 15 24
  </code></pre>
  
  <p>What I have made is:</p>
  
  <p><a href="https://i.stack.imgur.com/uhlVD.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uhlVD.jpg" alt="enter image description here"></a></p>
  
  <p>but I want the months on the same seasons to be in the same color and the Airports to be in the same texture.</p>
  
  <p>Thanks!</p>