title: Tableau find count of dimension for each of other dimension
body: <p>I have 3 columns in my data "Date", CustomerID and Action Type (There are 10 different types of Action type like item hover, product click etc)
  I want to eliminate those customers who has interactions of less that 20.
  For example, for a customer ID say 10, if the count of all the action type against this customer is less than 20 I want to eliminate that customer. I want to do this for each ween and create a line graph may be.</p>
  
  <p>Somebody please help, Although I am trying to do this in tableau but excel and access solutions are welcomed too. I have tried everything I could but still couldn't do it. My calculated field only works if I use customer Id along wth count which gives me a table that I dont want.</p>