Counting Last Observations of Each Company with Specific Value in costat and Counting dlrsn per Year Using Dplyr in R.

Joining Data Frames with dplyr in R: Preserving Common Columns and Filling NA

Using marginaleffects for Geometric Mean Marginal Effects in R: A Step-by-Step Guide

Finding Rows of a Data Frame Where Certain Columns Match Those of Another Using R's Merge Function

Limiting Options for col_type when Importing Using read_csv: A Practical Guide to Extracting Column Types Manually and Using spec_col()

Distributing Multiple Time Intervals Over a 1-Minute Base Using R: A Step-by-Step Guide

Handling Missing Values in Machine Learning: A Caret Approach to Data Preprocessing and Model Selection

Merging Adjacent Columns in R Data Frames: Two Effective Approaches

Resolving Compatibility Issues with the Lattice Package in R: A Step-by-Step Guide

Creating a Merged Data Frame with Average Values Across Multiple Datasets