title: Slice strings in a series depending on position of character
body: <p>So in my dataframe I want to slice my strings in order to remove a pre-amble from data. The only trouble is that this data is of varying lengths. So I need to work out where it supposed to start.</p>
  
  <p>Before:</p>
  
  <pre><code>Day 1 - abc
  Day 2 - bcd
  DAY 10 - DFE
  </code></pre>
  
  <p>After:</p>
  
  <pre><code>abc
  bcd
  DFE
  </code></pre>
  
  <p>I understand why the following doesn't work but thought I would provide it as a starting point</p>
  
  <pre><code>df['String'] = df.String.str.slice(start=df.String.str.find('-')+1)
  </code></pre>