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Data manipulation with Pandas
3 posts
Visualize how Pandas groupby works with the Split-Apply-Combine pattern. Interactive fruit sorting simulator shows why transform is faster than apply for group operations.
Learn why your Pandas DataFrame is 10x larger than it should be. Interactive cargo ship simulator shows how object vs category dtype and int64 vs int8 waste memory.
Visualize how Pandas merge creates duplicate rows with many-to-many joins. Interactive dating app simulator shows the Cartesian product explosion that crashes servers.