title: Comparing field to itself in DAX and Power BI
body: <p>I have the following data about ownership of barbers in three barber shops</p>
  
  <p><a href="https://i.stack.imgur.com/vOGgc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vOGgc.png" alt="enter image description here"></a></p>
  
  <p>I'm interested presenting a matrix on PBI where the rows are barbers that are owners in at least one barber shop and the columns are all barbers. Each cell in the matrix to represent relationship between the barbers when they're owners and the rest of the barbers. If two barbers own a barbershop their relationship is "owners" even if other barber shop one of them is tenant. If the second barber is always a tenant in owner's barber shop than it's a owner-tenant relationship. Same barber is "same person". Any other relationship remains blank.</p>
  
  <p>I expect the following result:</p>
  
  <p><a href="https://i.stack.imgur.com/JDbBN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JDbBN.png" alt="enter image description here"></a></p>