title: how to do For loop to plot categorical box plot?
body: <p>so I have a dataframe called <code>'houseCatSale'</code> and it has a variables that are categorical and I want to do a box plot with <code>'SalePrice'</code> which is numerical.</p>
  
  <p>I tried this code but it keeps saying that it could not recognise <code>houseCatsale[i]</code></p>
  
  <pre><code>f,axes = plt.subplots(4,1, figsize = (24,12))
  colours = ["r","g","c","m"]
  
  count =0 
  for i in houseCatsale:
      sb.boxplot(x = 'houseCatsale[i]', y = 'SalePrice', data = houseCatsale)
      count+=1
  </code></pre>