Combining Tables with Duplicate Rows for Non-Matching Columns Using R and dplyr

Multiplying Rows in Pandas DataFrames with Values from CSV Files: A Step-by-Step Guide

Multiplying Columns from One R Data Frame with Corresponding Percentages from Another

Repeating Rows in a Data Frame Based on a Column Value Using R and splitstackshape Libraries

Handling Missing Values While Multiplying Columns in Pandas DataFrames