anchor.diff:        on (trim crime.State = trim state.State)
     select (crime.murder_rate, state.State)
   }
  +*)
   
   (**
   Accessing data in a generic way
  
positive.code:           |> String.concat "," 
        printfn "%s" line )
  
  (**
  Displaying data in a grid
  -------------------------
  
  We can display the data in a grid. 
  *)
  
  open System.Windows.Forms
  
  // Create a window with a grid
  
negative.code:     )
  
  show page
  (*
  ![SAS dataset viewer](img/SasViewer.png)
  *)
  