title: turning stacked bar graph from R into ggplot2
body: <p>Newer to using R and ggplot2 for my data analysis. Trying to figure out how to turn my data from R into the ggplot2 format. The data is a set of values for 5 different categories and I want to make a stacked bar graph that allows me to section the stacked bar graph into 3 sections based on the value. Ex. small, medium, and large values based on arbitrary cutoffs. Similar to the 100% stacked bar graph in excel where the proportion of all the values adds up to 1 (on the y axis). There is a fair amount of data (~1500 observations) if that is also a valuable thing to note.</p>
  
  <p>here is a sample of what the data looks like (but it has approx 1000 observations for each column) (I put an excel screenshot because I don't know if that worked below)</p>
  
  <pre><code>dput(sample-data)
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/sS4HL.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sS4HL.png" alt=""></a>
    <img src="https://i.stack.imgur.com/0QLQY.png" alt="similar to this image but the proportions are specific to the arbitrary data cutoffs and there are only 3 of them"></p>