title: Simple Grouped Barplot (ggplot)
body: <p>I want to do a barplot like this one (with different values):</p>
  
  <p><a href="https://i.stack.imgur.com/tORoo.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tORoo.jpg" alt="barplot"></a></p>
  
  <p>Here's my dataframe:</p>
  
  <p><a href="https://i.stack.imgur.com/jgDej.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jgDej.jpg" alt="dataframe"></a></p>
  
  <p>Here's the top part of my code:</p>
  
  <pre><code>library("openxlsx")
  library(ggplot2)
  library("reshape")
  
  df1&lt;- read.xlsx("graficosparaR.xlsx", sheet = 'Hoja2', colNames = TRUE)
  </code></pre>
  
  <p>I tried using <code>ggplotfunction</code>, but I can't get it (I'm a beginner R user).</p>
  
  <p>Could you help me writing the code for the barplot?</p>