AI engineering glossary · NumPy pandas visualization
What is unstack?
unstack (also called stack): A pandas method that moves an inner level of a row index into the column headers, turning a long, stacked layout into a wider table. Its inverse, stack, moves column labels into the row index. Both work on a MultiIndex.
unstack: an example
A series indexed by (city, month) becomes a table with cities as rows and months as columns after s.unstack().
Related terms
More NumPy pandas visualization terms
Where you learn it
unstack is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.