Decomposing Time Series Data in R using stats Package and data.table Alternative Methods

Pandas GroupBy Tutorial: Summing Columns for Data Analysis

Transforming Data from Long Format to Wide Format Using dcast() in data.table

Aggregating Temperature Readings by 5-Minute Intervals Using R

SQL Query to Calculate Average Price per Item Per Day

Understanding Chained Indexing in Pandas Aggregation for Rounding Up Values After Group By Operations

5 Ways to Re Structure R Data from Long-Wide to Wide Format Using Dplyr and Other Methods