title: seaborn unable to change figsize
body: <p>Unable to change fig size, see example:</p>
  
  <pre><code>df = pd.DataFrame({'subset_product':['A','A','A','B','B','C','C'],
                     'subset_close':[1,1,0,1,1,1,0]})
  
  prod_counts = df.groupby('subset_product').size().rename('prod_counts')
  df['prod_count'] = df['subset_product'].map(prod_counts)
  g = sns.factorplot(y='prod_count',x='subset_product',hue='subset_close',data=df,kind='bar',palette='muted',legend=False,ci=None)
  plt.rcParams["figure.figsize"] = [20,10]
  plt.legend(loc='best')
  </code></pre>
  
  <p>Despite changing the figsize, it always gives me the same plot size and an empty plot </p>
  
  <p><a href="https://i.stack.imgur.com/tZg8i.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tZg8i.png" alt="enter image description here"></a></p>