title: SAS colon format modifier
body: <p><a href="https://i.stack.imgur.com/lxtuw.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lxtuw.jpg" alt="enter image description here"></a></p>
  
  <p>What do the numbers in the grey box represent? And what's a simple way of understanding how the colon modifier affects the way sas reads in values? </p>