Reshaping Three-Collar Data Frames to Matrix Format Using R

Collapsing a Dataset in R using dplyr with Weighted Mean as the Summarizing Function Using Loops

Creating a New Variable in a Data.Frame Based on Row Values: A More Efficient Approach with data.table Package

Calculating Percentages from a DataFrame with Multiple Species, Treatments, and Variables using dplyr: A Step-by-Step Guide to Correct Grouping and Percentage Calculation

Sampling a Subset of DataFrame by Group with Sample Size Equal to Another Subset of the DataFrame

Creating Subset of Data Table in R Based on Another Column Condition Using dplyr Library

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