Understanding Multi-Index DataFrames and Adding Columns with NaN Values

Understanding and Mastering Multi-Index from_Tuples in Pandas: A Powerful Tool for Complex Data Manipulation

Using Pandas Multi-Index and Avoiding KeyErrors with Integer Column Names

Choosing Between Multi-Indexing and Xarray: A Guide to Selecting the Right Tool for Your Multidimensional Data Needs

Pandas Sort Multiindex by Group Sum in Descending Order Without Hardcoding Years

Splitting a DataFrame Column into Two and Creating MultiIndex with Pandas

Selecting Sub-DataFrames According to First Two Levels of Multi-Index in Pandas DataFrame