Replace values with other values from another data frame with conditions, the others are unchanged.

Handling DataFrames with Different Column Counts: A Powerful Approach Using tidyverse

Merging and Reshaping DataFrames with pandas: A Step-by-Step Guide

Reformatting Dates to Weekly or Monthly Periods with Pandas and Period

Merging Dataframes Based on Multiple Conditions Using R and lubridate Package

Finding Minimum Value in One Table While Retrieving Associated Values from Another Using which.min and Rolling Join Methods in R.

Grouping and Transforming Data with Pandas: A Step-by-Step Guide

Understanding NaN and None in Pandas DataFrames: A Comprehensive Guide to Handling Missing Values

How to Group Data into a New Column Value Based on Condition Using R with lubridate and dplyr Packages

Conditional Logic in R: Mastering Rows with Same or Different Logical Values