Counting Columns Using R Based on Two Different Conditions: A Beginner's Guide

Filtering Rows with Multiple Conditions in Pandas Using Various Techniques

How to Fix a Game of Roulette: Functions, Loops, and Conditional Statements for Statistical Computing with R

Substituting Calculated Frame by Selector Input When Checkbox is Checked in Shiny Applications

Conditional Statements with difftime in R: A Practical Guide to Calculating Time Differences

Selecting Extreme Temperature Values from a Pandas Dataframe Column Based on Multiple Complicating Conditions Using Sliding Windows and Argmax Function

Filtering Pandas DataFrames with Multiple Conditions Using Groupby and Counter

Conditional Calculations on Different Sized Dataframes in Python Using Merging and Self-Joins

Data Manipulation and Filtering in R: A Case Study on Multiplying Column Values within a Date Range While Replacing Old Values