title: How to store custom class using CoreData
body: <p>I have a class extending NSObject. It is consisting of a few float variables. I want to store this class in core data. </p>
  
  <p>In the data model, It seems that the most probable option is to turn this class to a binary data in order to store it using CoreData. </p>
  
  <p>Is this correct? If so, can someone please direct me to how I might store and retrieve my class using CoreData?</p>
  
  <p>Thanks, </p>