title: Order bar graph in order. In this case, as per days of week
body: <p><a href="https://i.stack.imgur.com/zIq93.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zIq93.jpg" alt="enter image description here"></a></p>
  
  <p>I would like to order the bars as Monday, Tuesday, Wednesday...Sunday instead of a random order. I also would like to display the full numbers on the Y axis instead of 1e+05.</p>
  
  <pre><code>#code snippet
  DaysCrime &lt;- ggplot(TrainCrime, aes(DayOfWeek))
  
  DaysCrime + geom_histogram(colour = "darkblue", fill = "lightblue")
  </code></pre>