concept
Dataframe Operations
Dataframe Operations
Dataframe Operations are the small set of table transformations that drive most practical analysis. In Brevvie Python + AI — Section 3: Data, Polars & Pair Programming, the lesson emphasizes five core verbs.
The five verbs in the source
- filter: keep some rows
- select: keep or create columns
- group_by + aggregate: summarize by groups
- sort: order rows
- join: combine tables
Why it matters
The section frames most real data work as some composition of these few operations.
See also polars.