title: Seaborn Correlation Coefficient on PairGrid
body: <p>Is there a matplotlib or seaborn plot I could use with g.map_lower or g.map_upper to get the correlation coefficient displayed for each bivariate plot like shown below? plt.text was manually mapped to get the below example which is a tedious process.</p>
  
  <p><img src="https://i.stack.imgur.com/yieHO.jpg" alt="enter image description here"></p>