title: Multiple lines in different facet using ggplot in R
body: <p>I am having a very simple logical problem in ggplot.
  Please see the attached graph.
  <a href="https://i.stack.imgur.com/brcx2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/brcx2.png" alt="Graph attached here"></a></p>
  
  <p>I want multiple lines in each facet, I am getting only one line.
  Each set of values need to be connected individually across the Attribute.
  The code I have used is :</p>
  
  <pre><code>library(ggplot2)
  h &lt;- ggplot(data = df, mapping = aes(Attribute, Values, colour = Classe)) 
  h + geom_point(size = 0.7) + geom_line() + facet_wrap( ~ Classe, scales = "free_x")
  </code></pre>