How to Replace NAs with Character Pattern in Tidyverse and Remove Entire Rows if No Match is Found

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.

Transforming Categorical Variables into Ordinal Categories Based on Event Rates in Python Using Groupby Function

Creating Concatenated Values from Previous Columns Using Pandas

Summarizing Data by Site Number with Multiple Site Entries Using aggregate and dplyr Packages

Losing Duplicate Column Names when Flattening List-of-Lists into Dataframes in R

Detecting Outliers Using the Interquartile Range Method in R

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