Calculating days between similar or matching rows/events?
Hi everyone, I have a list of events and their dates. I want to calculate the number of days since a matching event happened. For example, I have a list of patients visiting a doctor. I have the first two columns, Name and Date of Visit, but I would like to know how to calculate the third column, Days Since Last Visit. This would return only the number of days since Dave's most recent visit. Any g...