title: R confusion heatmap
body: <p>I have created my first confusion heatmap using the code I found <a href="http://www.findnwrite.com/musings/visualizing-confusion-matrix-in-r/" rel="nofollow">here</a>.</p>
  
  <p>As I result I got a very nice plot with an "increasing" diagonal showing that the predicted and actual data are closely related. 
  Now, when I look up other confusion matrices, all of them show a "decreasing" diagonal and I'm wondering whether I should adapt my plot in that way (and if so: how?).</p>
  
  <p>Any ideas on that?</p>