Extracting Diagonal Elements from Matrices in R Using Various Methods

Arrange Rows in a Data Frame Based on Matching Values in Two Columns

Pivoting Data: Mastering Long to Wide Transformations with pivot_longer() and pivot_wider() in R

Creating New Variables with Levels from Existing Dichotomized Variables in R: A Comparative Approach Using `apply()` and `max.col()`

Converting Dates and Filtering Data for Time-Sensitive Analysis with R

This code creates a new dataframe with the same columns as the original dataframe, but with a new index that spans from January 5th to February 4th.

Merging a List of Data Frames in R: A Solution Using rbindlist and .id Argument

Pandas for Data Analysis: Finding Income Imbalance by Native Country Using Vectorized Operations

Resampling Data Over Customized Time Windows in Pandas

Moving Patterns with stringr: How to Append Patterns to Strings in R