Understanding Why `unique.default(x)` Fails for Data Frames in R: A Comprehensive Guide

Calculating Aggregates by Multiple Criteria in R Using dplyr

Converting a Data.Frame to a Multidimensional Array in R Using reshape2 Package

How to Resolve the Error Computing Mean on Data Frame in R Using `ddply` from Purrr Package

Joining Two Time-Series in a Single Function Using R Programming Language

Creating a Single DataFrame by Aggregating Multiple DataFrames in R Using Nested sapply Functions

Getting Unique Value Combinations and Calculating Proportions with R's DataFrames

Reshaping Three-Collar Data Frames to Matrix Format Using R