title: Create dummy variable column from value column
body: <p>I know that Pandas has a <code>get_dummy</code> function which you can use to convert categorical variables to dummy variables in a DataFrame. What I'm trying to do is slightly different.</p>
  
  <p>I have a column containing percentage values from 0.0 to 100.0. I need to convert this to a column that has 1's for any value >= 10.0 and 0's for any value &lt; 10.0. Is there a good way to do this repurposing <code>get_dummy</code> here or will I have to construct a loop to do it?</p>