Creating Variables Dynamically in Python Using DataFrames

Summing the Number of Different Columns Apart from the Name Column in Data Frames Using Map Function in R

Creating Unique Excel Worksheets with Pandas GroupBy and Filtering

Understanding the Pandas `dropna()` Function and Its Limitations in Python

Preserving Date Format while Iterating Over Sequences of Dates in R

Dynamically Creating New Columns Based on Existing Column Names in Pandas DataFrames