title: Custom number of ticks on y axis for a boxplot
body: <p>Here is sample code:</p>
  <pre><code>library(&quot;ggpubr&quot;)
  
  # Load data
  data(&quot;ToothGrowth&quot;)
  df &lt;- ToothGrowth
  
  # Basic plot
  ggboxplot(df, x = &quot;dose&quot;, y = &quot;len&quot;, width = 0.8)
  </code></pre>
  <p>It produces plot:</p>
  <p><a href="https://i.stack.imgur.com/nJo5r.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nJo5r.png" alt="enter image description here" /></a></p>
  <p>I need to have more ticks on <code>y</code> axis. I need to be able to set a custom number of the ticks that will be displayed on <code>y</code> axis. For example to make display on <code>y</code> axis <code>5, 10, 15, 20, 25, 30</code> ticks. How can set the number of ticks for <code>y</code> axis that I need?</p>