title: converting from dataset to macro variables
body: <p>I have the below dataset called myDS with only 1 row, the number of columns can be variable </p>
  
  <p>Below I have showed 4 columns but I can have less or more than 4 </p>
  
  <pre><code>   A        B        C        D
  
     3        4        "hello"        "apple" 
  </code></pre>
  
  <p>I would like to create a macro that takes the input as the dataset DS 
  and outputs macro variables named after the column </p>
  
  <p>so for example </p>
  
  <p>&amp;A should be 3 
  and &amp;B should be 4 
  &amp;C should be "hello" </p>
  
  <p>is this doable? 
  Thanks </p>