Merging Dataframes in R without Duplicates: A Step-by-Step Guide

Removing Duplicates from Each Row in an R Dataframe: A Comprehensive Guide

Here's a summary of the provided information and some additional examples to demonstrate the usage of the `melt()` function in R:

Subset Dataframe by Multiple Arguments in R Using data.table Package

Working with Data Frames in R: Explicitly Stating Argument Values as Data Frames

Creating a Pivot Table with Year and Month in Rows, Items as Columns in Pandas

Understanding Date Filtering and Subsampling in R: A Comprehensive Guide to Removing Dates from Vectors

Converting Long Data Frames to Longer Data Frames with Running Indicators in R

Using Apply and Filter to R Dataframe: A Comprehensive Guide for Efficient Data Manipulation

Looping Through Multiple Dataframes in R: Efficient Approaches Using lapply(), map(), eval(parse()), and More