Running column summary question
I have 10+ year of daily records. All variables are binary (0/1). However, I want to calculate on any given day what the sum of that variable was the last 180 days. So I would like to know what the sum was on January 1, 2021. I also want to know what that is on January 2, 2021. I know that 179 days are the same, but I want to have that calculated for every day. What is the most efficient way...
chadyoder
atlas100