Welcome to Fountain Pen Nib Marks! Curious how a fine nib differs from a broad one on the same paper? Post your nib mark tests, ask about writing angles, or share a sample sheet page. Reading is open to everyone, and new threads about nib marks are welcome.

How to calculate the Customer Retention Rate (CRR)? [Shopify + Python example]

  • Thread starter Thread starter RSS new | Fountain Pen Nib — Period Writing
  • Start date Start date
R

RSS new | Fountain Pen Nib — Period Writing

Guest
Calculate Customer Retention Rate (CRR) in Python on a Shopify dataset, the formula, an overall yearly rate, and a per-location/segment breakdown with pandas.
 
Top