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

Conditional Cumulative Sum with Conditional Inclusion in R

Calculating the Mean of Last N Rows of a Pandas DataFrame Where Previous Rows Meet a Condition Using Loops, Parallel Loops with Numba, and Matrix Operations

Working with Time Series Data in Python Using pandas and Resampling for Maximum Limit Handling

Grouping by Grouper and Cumsum Speed: A Step-by-Step Guide Using Pandas