title: ggplot2 (Barplot + LinePlot) - Dual Y axis
body: <p>I am having a really hard time recreating an excel example with ggplot2. I have tried numerous examples but for some reason I cannot reach my desired result. Can someone please have a look at my example?</p>
  
  <pre><code>df &lt;- structure(list(OccuranceCT = c(4825, 9063, 10635, 8733, 5594, 
  2850, 1182, 376, 135, 30, 11), TimesReshop = structure(1:11, .Label = c("1x", 
  "2x", "3x", "4x", "5x", "6x", "7x", "8x", "9x", "10x", "11x"), class = "factor"), 
      AverageRepair_HrsPerCar = c(7.48951898445596, 6.50803925852367, 
      5.92154446638458, 5.5703551356922, 5.38877037897748, 5.03508435087719, 
      4.92951776649746, 4.83878377659575, 4.67829259259259, 4.14746333333333, 
      3.54090909090909)), .Names = c("OccuranceCT", "TimesReshop", 
  "AverageRepair_HrsPerCar"), row.names = c(NA, 11L), class = "data.frame")
  </code></pre>
  
  <p>My plot so far:</p>
  
  <pre><code>Plot &lt;- ggplot(df, aes(x=TimesReshop, y=OccuranceCT)) +
    geom_bar(stat = "identity", color="red", fill="#C00000") +
    labs(x = "Car Count", y = "Average Repair Per Hour") + 
    geom_text(aes(label=OccuranceCT), fontface="bold", vjust=1.4, color="black", size=4) +
    theme_minimal()
  
  Plot
  </code></pre>
  
  <p><strong><em>This is what I got so far:</em></strong></p>
  
  <p><img src="https://i.stack.imgur.com/kL4ic.png" alt="1"></p>
  
  <p><strong><em>And what I am trying to achieve is:</em></strong></p>
  
  <p><img src="https://i.stack.imgur.com/yHRAX.png" alt="2"></p>
  
  <p>I would be grateful to learn how to add the secondary axis and combine a bar plot with a line plot. </p>