Selecting Certain Observations Plus Before and After Dates Using R

Mastering Data Manipulation and Joining Datasets in R with data.table

Resolving the Invalid 'Type' Argument Issue in Weighting Calculation Using R's ddply Function

How to Check if an Item Exists Within a List in R: Multiple Approaches for Efficient Data Analysis

The Power of Quoted Variables in Dplyr's Group_by() %>% mutate() Function Call

Understanding Arrow and Variable Columns: Unlocking Maximum Values with tidyselect

Replacing Values in R Data Columns Based on Conditions Using dplyr Package

Merging Dataframes with Different Lengths Using qpcR

Comparing Two Data Frames with Multiple Columns as Identifiers in R

Creating Multiple New Columns with Purrr for Efficient Data Manipulation in R