Logical Subset from Matrix Based on Multiple Columns with No Names

Mastering R Subsetting: Understanding Floating-Point Arithmetic Limitations and Workarounds

Subsetting Nominal Variables in R: A Comparative Analysis of Data.table, dplyr, and Base R

Working with Time Series in R: Subsetting by Last Workday of the Week Using xts Package

Subsetting Panel Data in R: A Comparative Analysis of Base R and data.table Package