title: Show outlier labels ggplot and geom_boxplot r for multiple variables?
body: <p>Any suggestions on how to solve problem?
  Unlike other similar questions here on the channel that presented the solution for a variable as a factor, my case is different. I would like to see the labels of the outliers for multiple variables.</p>
  <p>I have the following chart as below.
  for example:</p>
  <p><a href="https://i.stack.imgur.com/v7C4r.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/v7C4r.jpg" alt="enter image description here" /></a></p>
  <p>It was created with this command:</p>
  <pre><code>z_mtcars &lt;-data.frame(scale(mtcars[-12]))
  z_mtcars$type&lt;-rownames(mtcars)
  z_mtcars %&gt;% melt(id.vars = &quot;type&quot;)  %&gt;%
  ggplot() +
  aes( x = variable, y = value, fill = as.numeric(variable)) +
  geom_boxplot() +
  scale_fill_distiller(palette = &quot;Blues&quot;) +
  scale_alpha(range = c(1,1)) +
  ggtitle(&quot;Boxplot: Standardized Score (Z-Scale) &quot;) +
  xlab(&quot;Variables&quot;) +
  ylab(&quot;Value&quot;) + 
  labs(fill = &quot;Order of \nVariables&quot;) +
  theme_classic() +
  theme(axis.text.x = element_text(angle = 90,hjust = 1)) +
  geom_hline(yintercept = 0, linetype = &quot;dashed&quot;, color = &quot;red&quot;) +
  geom_hline(yintercept = 1, linetype = &quot;dotted&quot;, color = &quot;blue&quot;) +
  theme(legend.position = &quot;left&quot;)
  </code></pre>