A lagged rolling interval window in dplyr: How to calculate cumulative sales from a certain point in time using R and the dplyr library.

Creating Cumulative Counts in Pandas When Two Values Match

Calculating Cumulative Sum Over Rolling Date Range in R with dplyr and tidyr

Grouping Consecutive Values in Pandas DataFrames: A Solution Using Custom Series and Iteration Techniques

How to Calculate Cumulative Sums in Pandas and Reset on Multiple Conditions Using Loops and Groupby Operations