Estimating Mean and Variance with Monte Carlo Methods Using Density Kernels

How to Use RowMeans in R for Error-Free Data Analysis and Preparation

Aggregating Data Frames by Team in R: A Comparative Analysis of `dplyr`, `data.table`, and `base R`

Finding the Average of Several Lines with the Same ID in Big R Dataframes

Calculating Mean by Specific Value in Column While Grouping with Pandas