title: Scala: How can I replace value in Dataframes using scala
body: <p>For example I want to replace all numbers equal to 0.2 in a column to 0. How can I do that in Scala? Thanks</p>
  
  <p><strong>Edit</strong>:</p>
  
  <pre><code>|year| make|model| comment            |blank|
  |2012|Tesla| S   | No comment         |     | 
  |1997| Ford| E350|Go get one now th...|     | 
  |2015|Chevy| Volt| null               | null| 
  </code></pre>
  
  <p>This is my Dataframe I'm trying to change Tesla in make column to S</p>